diff --git a/src/accounts/forms.py b/src/accounts/forms.py
new file mode 100644
index 0000000..2f0b44f
--- /dev/null
+++ b/src/accounts/forms.py
@@ -0,0 +1,12 @@
+from django import forms
+from .models import User
+
+
+class AccountUpdateForm(forms.ModelForm):
+    class Meta:
+        model = User
+        fields = [
+            'first_name',
+            'last_name',
+            'email',
+        ]
diff --git a/src/accounts/templates/accounts/account_create.html b/src/accounts/templates/accounts/account_create.html
new file mode 100755
index 0000000..8bee1d3
--- /dev/null
+++ b/src/accounts/templates/accounts/account_create.html
@@ -0,0 +1,14 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<section class="panel">
+    <h1>Sign up</h1>
+
+    <form method="post">
+        {% csrf_token %}
+        {{ form.as_p }}
+
+        <input type="submit" value="Create account">
+    </form>
+</section>
+{% endblock %}
diff --git a/src/accounts/templates/accounts/account_detail.html b/src/accounts/templates/accounts/account_detail.html
new file mode 100755
index 0000000..55df003
--- /dev/null
+++ b/src/accounts/templates/accounts/account_detail.html
@@ -0,0 +1,83 @@
+{% extends 'base.html' %}
+{% load static %}
+{% load helpers %}
+
+{% block content %}
+<article class="account">
+    <header>
+        <h1>{{ object }}</h1>
+        {% if request.user == object %}
+            <p><a href="{% url 'account-update' object.pk %}">Update account</a></p>
+        {% endif %}
+    </header>
+    <section>
+        <h3>Posts</h3>
+        <table>
+            <thead>
+                <tr>
+                    <th>Post</th>
+                    <th>Comments</th>
+                    <th>Last comment</th>
+                </tr>
+            </thead>
+            {% for post in posts %}
+                <tr class="has-link" onclick="document.location='{% url 'core:post-detail' post.topic.pk post.pk %}'">
+                    <td>
+                        <h4>{{ post.title }}</h4>
+                        by <a href="{% url 'account-detail' post.author.pk %}">{{ post.author }}</a> » <time>{{ post.created_at }}</time>
+                    </td>                
+                    <td>{{ post.comments__count }}</td>
+                    {% if post.comments.last is not None %}
+                        {% with comment=post.comments.last %}
+                        <td>
+                            by <a href="{% url 'account-detail' comment.author.pk %}">{{ comment.author }}</a> » <time>{{ comment.created_at }}</time>
+                        </td>
+                        {% endwith %}
+                    {% else %}
+                        <td>No comments</td>
+                    {% endif %}
+                </tr>
+            {% empty %}
+                <tr>
+                    <td colspan="3">No posts</td>
+                </tr>
+            {% endfor %}
+            <tbody>
+                
+            </tbody>
+        </table>
+    </section>
+    <section>
+        <h3>Comments</h3>
+
+        <table>
+            <thead>
+                <tr>
+                    <th>Content</th>
+                    <th>Post</th>
+                    <th>Date</th>
+                </tr>
+            </thead>
+            {% for comment in comments %}
+                <tr>
+                    <td>{{ comment.content|markdown|safe|truncatechars_html:64 }}</td>
+                    {% with post=comment.content_object %}
+                    <td>
+                        <h4><a href="{{ post.get_absolute_url }}">{{ post.title }}</a></h4>
+                        by <a href="{% url 'account-detail' post.author.pk %}">{{ post.author }}</a> » <time>{{ post.created_at }}</time>
+                    </td>
+                    {% endwith %}
+                    <td><time>{{ comment.created_at }}</time></td>
+                </tr>
+            {% empty %}
+                <tr>
+                    <td colspan="3">No comments</td>
+                </tr>
+            {% endfor %}
+            <tbody>
+                
+            </tbody>
+        </table>
+    </section>
+</article>
+{% endblock %}
diff --git a/src/accounts/templates/accounts/account_form.html b/src/accounts/templates/accounts/account_form.html
new file mode 100755
index 0000000..cbd2cf9
--- /dev/null
+++ b/src/accounts/templates/accounts/account_form.html
@@ -0,0 +1,18 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<article class="panel">
+    
+    <section>
+        <h1>Update Profile</h1>
+        <p><a href="{% url 'password_change' %}">Change password</a></p>
+        <form method="post" action="{% url 'account-update' user.id %}">
+            {% csrf_token %}
+            {{ form.as_p }}
+
+            <input type="submit" value="Save changes" class="action-button"> or
+            <a href="{% url 'core:topic-list' %}">Cancel</a>
+        </form>
+    </section>
+</article>
+{% endblock %}
diff --git a/src/accounts/templates/accounts/account_list.html b/src/accounts/templates/accounts/account_list.html
new file mode 100755
index 0000000..e3d9893
--- /dev/null
+++ b/src/accounts/templates/accounts/account_list.html
@@ -0,0 +1,23 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<section class="panel">
+    <h1>Users</h1>
+    <table>
+        <thead>
+            <th>Username</th>
+            <th>Name</th>
+        </thead>
+        <tbody>
+            {% for user in user_list %}
+                <tr>
+                    <td>{{ user.username }}</td>
+                    <td><a href="{% url 'account-detail' user.id %}">{{user.first_name}} {{user.last_name}}</a></td>
+                </tr>
+            {% empty %}
+                <tr><td>No users yet.</td></tr>
+            {% endfor %}
+        </tbody>
+    </table>
+</section>
+{% endblock %}
diff --git a/src/accounts/templates/accounts/profile.html b/src/accounts/templates/accounts/profile.html
new file mode 100644
index 0000000..6a4349d
--- /dev/null
+++ b/src/accounts/templates/accounts/profile.html
@@ -0,0 +1,72 @@
+{% extends 'base.html' %}
+{% load static %}
+
+{% block content %}
+<article class="panel">
+    <header>
+        <h1 class="greeting"><em>Welcome {{profile.user.first_name}} {{profile.user.last_name }}</em>
+            <br>
+            Here's what's going on today
+        </h1>
+    </header>
+    <section>
+        <h3 class="domain__heading">Birthdays</h3>
+        <ul>
+        {% for student in birthdays %}
+            <li><strong><a href="{% url 'student-detail' student.pk %}">{{student}}</a></strong> is turning {{student.age|add:1}} on {{student.dob|date:"M j"}}</li>
+        {% empty %}
+        <p>No Birthdays this next week.</p>
+        {% endfor %}
+        </ul>
+    </section>
+    <section>
+        <h3 class="domain__heading">Today's Assignments</h3>
+        <ul>
+        {% for component in components %}
+            <li>
+                {{component.subject}}, <a href="{% url 'component-detail' component.subject.pk component.pk %}">{{component}}</a>
+            </li>
+        {% empty %}
+        <p>Nothing for today.</p>
+        {% endfor %}
+        </ul>
+    </section>
+    <section>
+        <h3 class="domain__heading">Today's Attendance</h3>
+        {% for day in attendance %}
+            <p><strong><a href="{% url 'day-update' day.pk %}">{{day.date}}</a></strong></p>
+            <table>
+                <thead>
+                    <tr>
+                        <td>Student</td>
+                        <td colspan="2">Status</td>
+                    </tr>
+                </thead>
+                <tbody>
+                    {% for entry in day.entry_set.all %}
+                    <tr>
+                        <td>{{entry.student}}</td>
+                        <td>{{entry.get_status_display}}</td>
+                        <td><a href="{% url 'entry-update' entry.pk %}">Update</a></td>
+                    </tr>                    
+                    {% endfor %}
+                </tbody>
+            </table>
+        {% empty %}
+            <p class="greeting">No attendance taken yet: <a href="{% url 'day-create' %}" class="action-button">Take attendance</a></p>
+        {% endfor %}
+    </section>
+    <section>
+        <h3 class="domain__heading">Assignments to be graded</h3>
+        <ul>
+        {% for component in ungraded_components %}
+            <li>
+                {{component.subject}}, <a href="{% url 'component-detail' component.subject.pk component.pk %}">{{component}}</a>
+            </li>
+        {% empty %}
+        <p>Everything is graded to far.</p>
+        {% endfor %}
+        </ul>
+    </section>
+</article>
+{% endblock %}
diff --git a/src/accounts/templates/accounts/profile_form.html b/src/accounts/templates/accounts/profile_form.html
new file mode 100755
index 0000000..9b1dd9e
--- /dev/null
+++ b/src/accounts/templates/accounts/profile_form.html
@@ -0,0 +1,10 @@
+<section>
+<h2>Settings</h2>
+<form action="{% url 'profile-update' user.profile.pk %}" method="POST">
+    {% csrf_token %}
+    {{form.as_p}}
+    <p>
+        <input type="submit" value="Save changes" class="action-button">
+    </p>
+</form>
+</section>
diff --git a/src/accounts/urls.py b/src/accounts/urls.py
new file mode 100644
index 0000000..4f89f4f
--- /dev/null
+++ b/src/accounts/urls.py
@@ -0,0 +1,11 @@
+from django.urls import path, include
+from . import views
+
+urlpatterns = [
+    path('', views.AccountListView.as_view(), name='account-list'),
+    path('<int:pk>/', include([
+        path('', views.AccountDetailView.as_view(), name='account-detail'),
+        path('update/', views.AccountUpdateView.as_view(), name='account-update'),
+        path('delete/', views.AccountDeleteView.as_view(), name='account-delete'),
+    ])),
+]
diff --git a/src/accounts/views.py b/src/accounts/views.py
index 91ea44a..083aa79 100644
--- a/src/accounts/views.py
+++ b/src/accounts/views.py
@@ -1,3 +1,53 @@
-from django.shortcuts import render
+from django.shortcuts import render, reverse, redirect, get_object_or_404
+from django.urls import reverse, reverse_lazy
+from django.views.generic.base import TemplateView
+from django.views.generic.detail import DetailView
+from django.views.generic.list import ListView
+from django.views.generic.edit import (
+    FormView, CreateView, UpdateView, DeleteView, FormMixin
+)
+from django.contrib import messages
+from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
+from django.contrib.messages.views import SuccessMessageMixin
+from django.contrib.auth.forms import PasswordChangeForm
 
-# Create your views here.
+from core.models import Comment, Post
+
+from .models import User
+from .forms import AccountUpdateForm
+
+
+class AccountListView(LoginRequiredMixin, ListView):
+    model = User
+    template_name = 'accounts/account_list.html'
+
+
+class AccountDetailView(LoginRequiredMixin, DetailView):
+    model = User
+    template_name = 'accounts/account_detail.html'
+
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+        context['posts'] = Post.objects.filter(author=self.object).order_by('-created_at')
+        context['comments'] = Comment.objects.filter(author=self.object).order_by('-created_at')
+
+        return context
+
+
+class AccountUpdateView(LoginRequiredMixin, UserPassesTestMixin, SuccessMessageMixin, UpdateView):
+    model = User
+    form_class = AccountUpdateForm
+    template_name = 'accounts/account_form.html'
+    success_message = 'Account updated.'
+    success_url = reverse_lazy('core:topic-list')
+
+    def test_func(self):
+        return self.request.user.pk == self.get_object().pk
+
+
+class AccountDeleteView(LoginRequiredMixin, UserPassesTestMixin, DeleteView):
+    model = User
+    success_url = reverse_lazy('core:topic-list')
+
+    def test_func(self):
+        return self.request.user.pk == self.get_object().pk
diff --git a/src/core/feeds.py b/src/core/feeds.py
deleted file mode 100644
index 422d1d7..0000000
--- a/src/core/feeds.py
+++ /dev/null
@@ -1,25 +0,0 @@
-from django.urls import reverse
-from django.contrib.syndication.views import Feed
-from django.utils.feedgenerator import Atom1Feed
-
-from .models import Post
-
-
-class RssLatestPostFeed(Feed):
-    title = 'Latest posts'
-    link = '/sitenews/'
-    description = 'A list of the latest posts.'
-
-    def items(self):
-        return Post.objects.order_by('-created_at')[:5]
-
-    def item_title(self, item):
-        return item.title
-
-    def item_description(self, item):
-        return item.subtitle
-
-
-class AtomLatestPostFeed(RssLatestPostFeed):
-    feed_type = Atom1Feed
-    subtitle = RssLatestPostFeed.description
diff --git a/src/core/forms.py b/src/core/forms.py
index d007cce..d5466c9 100644
--- a/src/core/forms.py
+++ b/src/core/forms.py
@@ -1,4 +1,5 @@
 from django import forms
+from django.core.mail import send_mail
 from .models import Post, Comment
 
 
@@ -21,16 +22,33 @@ class CommentCreateForm(forms.ModelForm):
             })
         }
 
+    def send_notification(self):
+        # subject = self.cleaned_data['content_object']
+        author = self.instance.author
+        message = self.cleaned_data.get('content')
+        post = Post.objects.get(pk=self.cleaned_data['object_id'])
+        recipients = list(post.recipients.all().values_list('email', flat=True))
+        recipients.remove(author.email)
+
+        send_mail(
+            post.title,
+            message,
+            author.email,
+            recipients
+        )
+
 
 class PostForm(forms.ModelForm):
     class Meta:
         model = Post
         fields = [
-            'author',
             'title',
             'content',
-            'topic'
+            'recipients'
         ]
         labels = {
             'content': ''
         }
+        widgets = {
+            'recipients': forms.CheckboxSelectMultiple()
+        }
diff --git a/src/core/migrations/0005_post_recipients.py b/src/core/migrations/0005_post_recipients.py
new file mode 100644
index 0000000..72dfc8b
--- /dev/null
+++ b/src/core/migrations/0005_post_recipients.py
@@ -0,0 +1,20 @@
+# Generated by Django 4.0.6 on 2022-07-20 20:35
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('core', '0004_alter_post_options_remove_post_is_published_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='post',
+            name='recipients',
+            field=models.ManyToManyField(related_name='subscriptions', to=settings.AUTH_USER_MODEL),
+        ),
+    ]
diff --git a/src/core/models.py b/src/core/models.py
index 7711054..6ce3379 100644
--- a/src/core/models.py
+++ b/src/core/models.py
@@ -76,6 +76,13 @@ class Comment(models.Model):
 
     objects = CommentManager()
 
+    @property
+    def edited(self):
+        if self.created_at.strftime('%Y%m%d%H%M%S') != self.updated_at.strftime('%Y%m%d%H%M%S'):
+            return True
+        else:
+            return False
+
     def get_absolute_url(self):
         return reverse('core:comment-detail', kwargs={'pk': self.pk})
 
@@ -120,6 +127,10 @@ class Post(models.Model):
     )
 
     comments = GenericRelation(Comment, related_query_name='parent')
+    recipients = models.ManyToManyField(
+        User,
+        related_name='subscriptions'
+    )
     tags = GenericRelation(Tag)
 
     created_at = models.DateTimeField(auto_now_add=True)
diff --git a/src/core/templates/core/comment_detail.html b/src/core/templates/core/comment_detail.html
index 975da5e..62a26c2 100644
--- a/src/core/templates/core/comment_detail.html
+++ b/src/core/templates/core/comment_detail.html
@@ -2,9 +2,18 @@
 
 <figure class="comment">
     <figcaption>
-        <h5>
-            <a href="" class="comment__author">{{ comment.author }}</a> » <time>{{ comment.created_at }}</time>
-        </h5>
+        <div class="comment__header">
+            <h5>
+                <a href="{% url 'account-detail' comment.author.pk %}" class="comment__author">{{ comment.author }}</a> » <time>{{ comment.created_at }}</time>
+            </h5>
+            <div>
+            {% if comment.edited %}
+                <span>Edited: <time>{{ comment.updated_at }}</time></span>
+            {% endif %}
+            {% if request.user == comment.author %}<a href="{% url 'core:comment-update' comment.pk %}">Edit</a>{% endif %}
+            </div>
+        </div>
+        
     </figcaption>
     <div class="comment__content">
         {{ comment.content|markdown|safe }}
diff --git a/src/core/templates/core/comment_form.html b/src/core/templates/core/comment_form.html
index b4698c1..112c075 100644
--- a/src/core/templates/core/comment_form.html
+++ b/src/core/templates/core/comment_form.html
@@ -1,13 +1,14 @@
 {% extends 'base.html' %}
 
 {% block content %}
-<h1>Update comment</h1>
-<p><a href="{% url 'core:commend-delete' comment.pk %}">Delete</a></p>
-<form method="POST" action="{% url 'core:comment-update' comment.pk %}">
-    {% csrf_token %}
-    {{ form.as_p }}
-    <p>
-        <input type="submit" value="Save changes"> or <a href="{% url 'core:comment-detail' comment.pk %}">cancel</a>
-    </p>
-</form>
+<article>
+    <h1>Update comment</h1>
+    <form method="POST" action="{% url 'core:comment-update' comment.pk %}">
+        {% csrf_token %}
+        {{ form.as_p }}
+        <p>
+            <input type="submit" value="Save changes"> or <a href="{{ comment.content_object.get_absolute_url }}">cancel</a>
+        </p>
+    </form>
+</article>
 {% endblock %}
diff --git a/src/core/templates/core/post_detail.html b/src/core/templates/core/post_detail.html
index fd0da7f..35feb38 100644
--- a/src/core/templates/core/post_detail.html
+++ b/src/core/templates/core/post_detail.html
@@ -22,19 +22,21 @@
         <div>
             <h1>{{ post.title }}</h1>
             <p>
-                <a href="" class="post__author">{{ post.author }}</a> » <time>{{ post.created_at }}</time>
+                <a href="{% url 'account-detail' post.author.pk %}" class="post__author">{{ post.author }}</a> » <time>{{ post.created_at }}</time>
             </p>
         </div>
+        {% if request.user == post.author %}
         <div>
             <a href="{% url 'core:post-update' post.topic.pk post.pk %}" class="action-button">Edit</a>
             <a href="{% url 'core:post-delete' post.topic.pk post.pk %}" class="action-button">Delete</a>
         </div>
+        {% endif %}
     </header>
     <section class="post__content">
         {{ post.content|markdown|safe }}
     </section>
     <section class="comments detail__comments">
-        <h2>Discussion</h2>
+        <h3>Discussion</h3>
 
         <div class="comments__list">
         {% for comment in post.comments.all %}
diff --git a/src/core/templates/core/post_form.html b/src/core/templates/core/post_form.html
index 723e338..03fa4e1 100644
--- a/src/core/templates/core/post_form.html
+++ b/src/core/templates/core/post_form.html
@@ -1,27 +1,14 @@
 {% extends 'base.html' %}
 {% load static %}
 
-{% block head %}
-<script src="{% static 'scripts/codemirror.js' %}" defer></script>
-<script defer type="module">
-    import {EditorView, keymap} from "codemirror/view"
-    import {defaultKeymap} from "codemirror/commands"
-
-    let myView = new EditorView({
-      extensions: [keymap.of(defaultKeymap)],
-      parent: document.querySelector('#id_content')
-    })
-</script>
-{% endblock %}
-
 {% block content %}
 <article class="post">
     <h1>Update Post</h1>
-    <form method="POST" action="{% url 'post-update' post.pk %}" enctype="multipart/form-data">
+    <form method="POST" action="{% url 'core:post-update' post.topic.pk post.pk %}">
         {% csrf_token %}
         {{ form.as_p }}
         <p>
-            <input type="submit" value="Save changes"> or <a href="{% url 'post-detail' post.pk %}">cancel</a>
+            <input type="submit" value="Save changes"> or <a href="{% url 'core:post-detail' post.topic.pk post.pk %}">cancel</a>
         </p>
     </form>
 </article>
diff --git a/src/core/templates/core/topic_detail.html b/src/core/templates/core/topic_detail.html
index fc3a3d8..747591e 100644
--- a/src/core/templates/core/topic_detail.html
+++ b/src/core/templates/core/topic_detail.html
@@ -12,9 +12,10 @@
 <article>
     <header>
         <h1>{{ topic.name }}</h1>
-        <p>{{ topic.description }} » {{ topic.created_at }}</p>
+        <h4>{{ topic.description }}</h4>
+        <p>Created: <time>{{ topic.created_at }}</time></p>
         <p>
-            <a href="{% url 'core:post-create' topic.pk %}">+ New post</a>
+            <a href="{% url 'core:post-create' topic.pk %}" class="action-button">+ New post</a>
         </p>
     </header>
 <section>
@@ -30,13 +31,13 @@
             <tr class="has-link" onclick="document.location='{% url 'core:post-detail' topic.pk post.pk %}'">
                 <td>
                     <h4>{{ post.title }}</h4>
-                    by <a href="">{{ post.author }}</a> » {{ post.created_at }}
+                    by <a href="{% url 'account-detail' post.author.pk %}">{{ post.author }}</a> » <time>{{ post.created_at }}</time>
                 </td>                
                 <td>{{ post.comments__count }}</td>
                 {% if post.comments.last is not None %}
                     {% with comment=post.comments.last %}
                     <td>
-                        by <a href="">{{ comment.author }}</a> » {{ comment.created_at }}
+                        by <a href="{% url 'account-detail' comment.author.pk %}">{{ comment.author }}</a> » <time>{{ comment.created_at }}</time>
                     </td>
                     {% endwith %}
                 {% else %}
diff --git a/src/core/templates/core/topic_list.html b/src/core/templates/core/topic_list.html
index cfdbc50..3704141 100644
--- a/src/core/templates/core/topic_list.html
+++ b/src/core/templates/core/topic_list.html
@@ -5,7 +5,7 @@
     <header>
     <h1>Topics</h1>
     <p>
-        <a href="{% url 'core:topic-create' %}">+ New topic</a>
+        <a href="{% url 'core:topic-create' %}" class="action-button">+ New topic</a>
     </p>
     </header>
     <section>
@@ -28,7 +28,7 @@
                 {% with post=topic.post_set.last %} 
                 <td>
                     {{ post.title  }}<br>
-                    by <a href="">{{ post.author }}</a> » {{ post.created_at }}
+                    by <a href="{% url 'account-detail' post.author.pk %}">{{ post.author }}</a> » <time>{{ post.created_at }}</time>
                 </td>
                 {% endwith %}
             </tr>
diff --git a/src/core/views.py b/src/core/views.py
index 620ec33..5a15197 100644
--- a/src/core/views.py
+++ b/src/core/views.py
@@ -8,7 +8,7 @@ from django.views.generic.edit import (
     FormView, CreateView, UpdateView, DeleteView, FormMixin
 )
 from django.contrib import messages
-from django.contrib.auth.mixins import LoginRequiredMixin
+from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
 from django.contrib.messages.views import SuccessMessageMixin
 from django.contrib.contenttypes.models import ContentType
 
@@ -16,15 +16,15 @@ from .models import Topic, Post, Comment
 from .forms import PostForm, CommentCreateForm
 
 
-class CommentListView(ListView):
+class CommentListView(LoginRequiredMixin, ListView):
     model = Comment
 
 
-class CommentDetailView(DetailView):
+class CommentDetailView(LoginRequiredMixin, DetailView):
     model = Comment
 
 
-class CommentCreateView(CreateView):
+class CommentCreateView(LoginRequiredMixin, CreateView):
     model = Comment
     form_class = CommentCreateForm
     template_name_suffix = '_create_form'
@@ -34,22 +34,31 @@ class CommentCreateView(CreateView):
 
     def form_valid(self, form):
         form.instance.author = self.request.user
+        form.send_notification()
         return super().form_valid(form)
 
 
-class CommentUpdateView(SuccessMessageMixin, UpdateView):
+class CommentUpdateView(
+    LoginRequiredMixin, UserPassesTestMixin, SuccessMessageMixin, UpdateView
+):
     model = Comment
     success_message = 'Comment saved.'
-    fields = '__all__'
+    fields = ['content']
+
+    def test_func(self):
+        return self.request.user.pk == self.get_object().author.pk
+
+    def get_success_url(self):
+        return self.object.content_object.get_absolute_url()
 
 
-class CommentDeleteView(SuccessMessageMixin, DeleteView):
+class CommentDeleteView(LoginRequiredMixin, SuccessMessageMixin, DeleteView):
     model = Comment
     success_message = 'Comment deleted.'
     success_url = reverse_lazy('core:comment-list')
 
 
-class TopicListView(ListView):
+class TopicListView(LoginRequiredMixin, ListView):
     model = Topic
 
     def get_queryset(self):
@@ -59,26 +68,29 @@ class TopicListView(ListView):
         return queryset
 
 
-class TopicCreateView(SuccessMessageMixin, CreateView):
+class TopicCreateView(LoginRequiredMixin, SuccessMessageMixin, CreateView):
     model = Topic
     success_message = 'Topic created.'
     template_name_suffix = '_create_form'
     fields = '__all__'
 
 
-class TopicDetailView(DetailView):
+class TopicDetailView(LoginRequiredMixin, DetailView):
     model = Topic
     pk_url_kwarg = 'topic_pk'
 
 
-class TopicUpdateView(SuccessMessageMixin, UpdateView):
+class TopicUpdateView(LoginRequiredMixin, SuccessMessageMixin, UpdateView):
     model = Topic
     pk_url_kwarg = 'topic_pk'
     success_message = 'Topic saved.'
-    fields = '__all__'
+    fields = [
+        'name',
+        'description'
+    ]
 
 
-class TopicDeleteView(SuccessMessageMixin, DeleteView):
+class TopicDeleteView(LoginRequiredMixin, SuccessMessageMixin, DeleteView):
     model = Topic
     pk_url_kwarg = 'topic_pk'
     success_message = 'Topic deleted.'
@@ -89,14 +101,11 @@ class PostListView(ListView):
     model = Post
 
 
-class PostCreateView(SuccessMessageMixin, CreateView):
+class PostCreateView(LoginRequiredMixin, SuccessMessageMixin, CreateView):
     model = Post
     success_message = 'Post created.'
     template_name_suffix = '_create_form'
-    fields = [
-        'title',
-        'content',
-    ]
+    form_class = PostForm
 
     def get_context_data(self, *args, **kwargs):
         context = super().get_context_data(*args, **kwargs)
@@ -111,7 +120,7 @@ class PostCreateView(SuccessMessageMixin, CreateView):
         return super().form_valid(form)
 
 
-class PostDetailView(DetailView):
+class PostDetailView(LoginRequiredMixin, DetailView):
     model = Post
     pk_url_kwarg = 'post_pk'
 
@@ -126,14 +135,19 @@ class PostDetailView(DetailView):
         return context
 
 
-class PostUpdateView(SuccessMessageMixin, UpdateView):
+class PostUpdateView(
+    LoginRequiredMixin, UserPassesTestMixin, SuccessMessageMixin, UpdateView
+):
     model = Post
     pk_url_kwarg = 'post_pk'
     success_message = 'Post saved.'
-    fields = '__all__'
+    form_class = PostForm
+
+    def test_func(self):
+        return self.request.user.pk == self.get_object().author.pk
 
 
-class PostDeleteView(SuccessMessageMixin, DeleteView):
+class PostDeleteView(LoginRequiredMixin, SuccessMessageMixin, DeleteView):
     model = Post
     pk_url_kwarg = 'post_pk'
     success_message = 'Post deleted.'
diff --git a/src/forum/middleware.py b/src/forum/middleware.py
new file mode 100644
index 0000000..a64cb54
--- /dev/null
+++ b/src/forum/middleware.py
@@ -0,0 +1,17 @@
+import zoneinfo
+from urllib import parse
+from django.utils import timezone
+
+
+class TimezoneMiddleware:
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        tzname = request.COOKIES.get('timezone')
+        if tzname:
+            tzname = parse.unquote(tzname)
+            timezone.activate(zoneinfo.ZoneInfo(tzname))
+        else:
+            timezone.deactivate()
+        return self.get_response(request)
diff --git a/src/forum/settings.py b/src/forum/settings.py
index a484570..ced4ecf 100644
--- a/src/forum/settings.py
+++ b/src/forum/settings.py
@@ -1,5 +1,6 @@
 import os
 from pathlib import Path
+from django.urls import reverse_lazy
 
 from .config import *
 
@@ -40,6 +41,7 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'forum.middleware.TimezoneMiddleware',
 
 ]
 
@@ -137,3 +139,4 @@ STATICFILES_FINDERS = (
 
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
 AUTH_USER_MODEL = 'accounts.User'
+LOGIN_REDIRECT_URL = reverse_lazy('core:topic-list')
diff --git a/src/forum/urls.py b/src/forum/urls.py
index a0e83de..ada9bbc 100644
--- a/src/forum/urls.py
+++ b/src/forum/urls.py
@@ -2,13 +2,14 @@ from django.conf import settings
 from django.contrib import admin
 from django.urls import include, path
 from django.conf.urls.static import static
-from core.feeds import RssLatestPostFeed, AtomLatestPostFeed
 
 urlpatterns = [
-path('', include(('core.urls', 'core'), namespace='core')),
-    path('sitenews/rss/', RssLatestPostFeed()),
-    path('sitenews/atom/', AtomLatestPostFeed()),
+    path('', include(('core.urls', 'core'), namespace='core')),
+    path('accounts/', include('accounts.urls'), name='accounts'),
+    path('accounts/', include('django.contrib.auth.urls')),
     path('admin/', admin.site.urls),
 ]
-urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
-urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
+
+if settings.DEBUG:
+    urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
+    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
diff --git a/src/static/scripts/cookie.js b/src/static/scripts/cookie.js
new file mode 100644
index 0000000..8e2378d
--- /dev/null
+++ b/src/static/scripts/cookie.js
@@ -0,0 +1,24 @@
+export function getCookie(name) {
+  let cookieValue = null
+  if (document.cookie && document.cookie !== '') {
+    const cookies = document.cookie.split(';')
+    for (let i = 0; i < cookies.length; i++) {
+      const cookie = cookies[i].trim()
+      // Does this cookie string begin with the name we want?
+      if (cookie.substring(0, name.length + 1) === (name + '=')) {
+        cookieValue = decodeURIComponent(cookie.substring(name.length + 1))
+        break
+      }
+    }
+  }
+  return cookieValue
+}
+
+const twentyYears = 20 * 365 * 24 * 60 * 60 * 1000
+
+export function setCookie(name, value, expiration=twentyYears) {
+  const body = [ name, value ].map(encodeURIComponent).join("=")
+  const expires = new Date(Date.now() + expiration).toUTCString()
+  const cookie = `${body}; domain=; path=/; SameSite=Lax; expires=${expires}`
+  document.cookie = cookie
+}
diff --git a/src/static/scripts/timezone.js b/src/static/scripts/timezone.js
new file mode 100644
index 0000000..2f9652d
--- /dev/null
+++ b/src/static/scripts/timezone.js
@@ -0,0 +1,4 @@
+import { setCookie } from './cookie.js'
+
+const { timeZone } = new Intl.DateTimeFormat().resolvedOptions()
+setCookie('timezone', timeZone)
diff --git a/src/static/styles/main.css b/src/static/styles/main.css
index 97b08c0..671085f 100644
--- a/src/static/styles/main.css
+++ b/src/static/styles/main.css
@@ -22,6 +22,7 @@ body {
     color: #000000;
 }
 p {
+    margin-top: 0;
     margin-bottom: 1rem;
 }
 a {
@@ -155,7 +156,7 @@ button,
    Block Elements
    ========================================================================== */
 main {
-    max-width: 1200px;
+    max-width: 1024px;
     margin: 0 auto;
 }
 
@@ -173,6 +174,12 @@ main {
     align-items: center;
     color: var(--color-white);
 }
+.site__logo {
+    text-decoration: none;
+}
+.site__logo a:hover {
+    color: var(--color-white);
+}
 .site__header h1 {
     margin: 0;
 }
@@ -219,12 +226,25 @@ main {
 }
 
 
+/* ==========================================================================
+   Account
+   ========================================================================== */
+.account header,
+.account section {
+    margin-bottom: 4rem;
+}
+
+
 /* ==========================================================================
    Post
    ========================================================================== */
+.post {
+    margin-bottom: 2rem;
+}
 .post__header {
     display: flex;
     justify-content: space-between;
+    margin-bottom: 2rem;
 }
 .post__content {
     font-family: 'STIX Two Text';
@@ -243,10 +263,41 @@ main {
     padding: 1rem;
 }
 
+.comment__header {
+    display: flex;
+    justify-content: space-between;
+}
+
 .comment__content {
     font-family: 'STIX Two Text';
     font-size: 200%;
-    max-width: 64ch;
+    /*max-width: 64ch;*/
+}
+
+.comment__content h1,
+.comment__content h2,
+.comment__content h3,
+.comment__content h4,
+.comment__content h5 {
+    font-family: 'STIX Two Text';
+    text-transform: unset;
+    margin: 2em 0 1em;
+}
+
+.comment__content h1 {
+    font-size: 1.802em;
+}
+.comment__content h2 {
+    font-size: 1.602em;
+}
+.comment__content h3 {
+    font-size: 1.424em;
+}
+.comment__content h4 {
+    font-size: 1.266em;
+}
+.comment__content h5 {
+    font-size: 1.125em;
 }
 
 .comment p {
diff --git a/src/templates/base.html b/src/templates/base.html
index 0097383..16aaff6 100644
--- a/src/templates/base.html
+++ b/src/templates/base.html
@@ -17,29 +17,36 @@
     <link rel="stylesheet" type="text/css" href="{% static "styles/main.css" %}">
     {% endcompress %}
 
+    <script type="module" defer src="{% static 'scripts/timezone.js' %}"></script>
+
     {% block head %}
     {% endblock %}
 </head>
 <body>
 
 <header class="site__header">
-    <h1>The Forum</h1>
+    <h1 class="site__logo"><a href="{% url 'core:topic-list' %}">The Forum</a></h1>
+    {% if messages %}
+    <div class="messages">
+        {% for message in messages %}
+        <span {% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</span>
+        {% endfor %}
+    </div>
+    {% endif %}
     <nav class="site__nav">
+    {% if user.is_authenticated %}
         <menu>
-            <li><a href="">Register</a></li>
-            <li><a href="">Login</a></li>
+            <li><a href="{% url 'account-detail' request.user.pk %}">Profile</a></li>
+            <li><a href="{% url 'logout' %}">Log out</a></li>
         </menu>
+    {% else %}
+        <menu>
+            <li><a href="{% url 'login' %}">Login</a></li>
+        </menu>
+    {% endif %}
     </nav>
 </header>
 <main>
-    {% if messages %}
-    <section class="messages">
-        {% for message in messages %}
-        <p {% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</p>
-        {% endfor %}
-    </section>
-    {% endif %}
-
     {% block breadcrumbs %}
     {% endblock breadcrumbs %}
 
diff --git a/src/templates/registration/logged_out.html b/src/templates/registration/logged_out.html
new file mode 100755
index 0000000..0b464dc
--- /dev/null
+++ b/src/templates/registration/logged_out.html
@@ -0,0 +1,9 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<article class="panel">
+    <section>
+        <p>You have been logged out. <a href="{% url 'login' %}">Log in</a></p>
+    </section>
+</article>
+{% endblock %}
diff --git a/src/templates/registration/login.html b/src/templates/registration/login.html
new file mode 100755
index 0000000..b7d4b80
--- /dev/null
+++ b/src/templates/registration/login.html
@@ -0,0 +1,33 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<article class="panel">
+    <h1>Log in</h1>
+    {% if form.errors %}
+    <p class="error">Your username and password didn't match. Please try again.</p>
+    {% endif %}
+
+    <form method="post" action="{% url 'login' %}">
+        {% csrf_token %}
+        <p>
+            {{ form.username.label_tag }}
+            {{ form.username }}
+        </p>
+
+        <p>
+            {{ form.password.label_tag }}
+            {{ form.password }}
+            <br>
+            <small>
+                Forgot your password?
+                <a class="password__reset hover" href="{% url 'password_reset' %}">Reset your password here</a>.
+            </small>
+        </p>
+
+        <p>
+            <input type="submit" value="Login" class="action-button">
+            <input type="hidden" name="next" value="{{ next }}">
+        </p>
+    </form>
+</article>
+{% endblock %}
diff --git a/src/templates/registration/password_change_done.html b/src/templates/registration/password_change_done.html
new file mode 100755
index 0000000..fb611b7
--- /dev/null
+++ b/src/templates/registration/password_change_done.html
@@ -0,0 +1,12 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<article class="panel">
+    <section>
+        <p>
+            Password has been changed.
+            <a href="{% url 'login' %}" class="action-button">Log in</a>
+        </p>
+    </section>
+</article>
+{% endblock %}
diff --git a/src/templates/registration/password_change_form.html b/src/templates/registration/password_change_form.html
new file mode 100755
index 0000000..cad7d69
--- /dev/null
+++ b/src/templates/registration/password_change_form.html
@@ -0,0 +1,14 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<article class="panel">
+    <h1>Change password</h1>
+    <form method="post" action="{% url 'password_change' %}">
+        {% csrf_token %}
+        {{ form.as_p }}
+
+        <input type="submit" value="Change my password" class="action-button"> or
+        <a href="{{request.META.HTTP_REFERER}}">Cancel</a>
+    </form>
+</article>
+{% endblock %}
diff --git a/src/templates/registration/password_reset_complete.html b/src/templates/registration/password_reset_complete.html
new file mode 100755
index 0000000..ad0c905
--- /dev/null
+++ b/src/templates/registration/password_reset_complete.html
@@ -0,0 +1,7 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<article class="panel">
+    <p>Password was reset successfully.</p>
+</article>
+{% endblock %}
diff --git a/src/templates/registration/password_reset_confirm.html b/src/templates/registration/password_reset_confirm.html
new file mode 100755
index 0000000..1aaf4a8
--- /dev/null
+++ b/src/templates/registration/password_reset_confirm.html
@@ -0,0 +1,24 @@
+{% extends 'base.html' %}
+
+{% block content %}
+
+{% if validlink %}
+<article class="panel">
+    <h1>Reset password</h1>
+    <p>Enter a <em>new</em> password below.</p>
+    <form method="post" action=".">
+        {% csrf_token %}
+        {{ form.as_p }}
+
+        <input type="submit" value="Reset your password" class="action-button">
+    </form>
+</article>
+{% else %}
+
+<article class="panel">
+    <h1 class="error">Password reset failed</h1>
+</article>
+
+{% endif %}
+
+{% endblock %}
diff --git a/src/templates/registration/password_reset_done.html b/src/templates/registration/password_reset_done.html
new file mode 100755
index 0000000..8f2b394
--- /dev/null
+++ b/src/templates/registration/password_reset_done.html
@@ -0,0 +1,7 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<article class="panel">
+    <p>An email with password reset instructions has been sent.</p>
+</article>
+{% endblock %}
diff --git a/src/templates/registration/password_reset_email.html b/src/templates/registration/password_reset_email.html
new file mode 100755
index 0000000..8c37094
--- /dev/null
+++ b/src/templates/registration/password_reset_email.html
@@ -0,0 +1,10 @@
+{% load i18n %}{% autoescape off %}
+{% blocktranslate %}You're receiving this email because you requested a password reset for your user account at {{ site_name }}.{% endblocktranslate %}
+
+{% translate "Please go to the following page and choose a new password:" %}
+{% block reset_link %}
+{{ protocol }}://{{ domain }}{% url 'password_reset_confirm' uidb64=uid token=token %}
+{% endblock %}
+{% translate 'Your username, in case you’ve forgotten:' %} {{ user.get_username }}
+
+{% endautoescape %}
diff --git a/src/templates/registration/password_reset_form.html b/src/templates/registration/password_reset_form.html
new file mode 100755
index 0000000..1a21366
--- /dev/null
+++ b/src/templates/registration/password_reset_form.html
@@ -0,0 +1,14 @@
+{% extends 'base.html' %} {% block content %}
+<article class="panel">
+    <h1>Reset your password</h1>
+    <p>Enter your email address below and we'll send you instructions on how to reset your password.</p>
+    <form method="post" action="{% url 'password_reset' %}">
+        {% csrf_token %}
+        {{ form.as_p }}
+
+        <p>
+            <input type="submit" value="Send me instructions" class="action-button">
+        </p>
+    </form>
+</article>
+{% endblock %}