diff --git a/src/discussions/discussions-home/DiscussionsHome.jsx b/src/discussions/discussions-home/DiscussionsHome.jsx
index 2f0edf42..59f44bb6 100644
--- a/src/discussions/discussions-home/DiscussionsHome.jsx
+++ b/src/discussions/discussions-home/DiscussionsHome.jsx
@@ -1,15 +1,18 @@
 import React from 'react';
 
+import { useSelector } from 'react-redux';
 import { Route, Switch } from 'react-router';
 
 import { PostActionsBar } from '../../components';
 import { Routes } from '../../data/constants';
 import { CommentsView } from '../comments';
 import { BreadcrumbMenu, NavigationBar } from '../navigation';
-import { PostsView } from '../posts';
+import { PostEditor, PostsView } from '../posts';
 import { TopicsView } from '../topics';
 
 export default function DiscussionsHome() {
+  const postEditorVisible = useSelector(state => state.threads.postEditorVisible);
+
   return (
     <main className="container my-4 d-flex flex-row">
       <div className="d-flex flex-column w-50 mr-1">
@@ -34,9 +37,14 @@ export default function DiscussionsHome() {
       </div>
       <div className="d-flex w-50 pl-1 flex-column">
         <PostActionsBar />
-        <Route path={Routes.COMMENTS.PATH}>
-          <CommentsView />
-        </Route>
+        {
+          postEditorVisible ? <PostEditor />
+            : (
+              <Route path={Routes.COMMENTS.PATH}>
+                <CommentsView />
+              </Route>
+            )
+        }
       </div>
     </main>
   );
diff --git a/src/discussions/posts/data/slices.js b/src/discussions/posts/data/slices.js
index 555c4141..fb053f26 100644
--- a/src/discussions/posts/data/slices.js
+++ b/src/discussions/posts/data/slices.js
@@ -55,6 +55,7 @@ const threadsSlice = createSlice({
       myPosts: MyPostsFilter.MY_POSTS,
       search: '',
     },
+    postEditorVisible: false,
     sortedBy: ThreadOrdering.BY_LAST_ACTIVITY,
   },
   reducers: {
@@ -150,6 +151,12 @@ const threadsSlice = createSlice({
     setSearchQuery: (state, { payload }) => {
       state.filters.search = payload;
     },
+    showPostEditor: (state) => {
+      state.postEditorVisible = true;
+    },
+    hidePostEditor: (state) => {
+      state.postEditorVisible = false;
+    },
   },
 });
 
@@ -179,6 +186,8 @@ export const {
   setSortedBy,
   setStatusFilter,
   setSearchQuery,
+  showPostEditor,
+  hidePostEditor,
 } = threadsSlice.actions;
 
 export const threadsReducer = threadsSlice.reducer;
diff --git a/src/discussions/posts/index.js b/src/discussions/posts/index.js
index 0d94283b..0e1c9b50 100644
--- a/src/discussions/posts/index.js
+++ b/src/discussions/posts/index.js
@@ -1,2 +1,3 @@
 /* eslint-disable import/prefer-default-export */
 export { default as PostsView } from './PostsView';
+export { default as PostEditor } from './post-editor/PostEditor';
diff --git a/src/discussions/posts/post-actions-bar/PostActionsBar.jsx b/src/discussions/posts/post-actions-bar/PostActionsBar.jsx
index ca457d45..735d6f57 100644
--- a/src/discussions/posts/post-actions-bar/PostActionsBar.jsx
+++ b/src/discussions/posts/post-actions-bar/PostActionsBar.jsx
@@ -5,7 +5,7 @@ import { useDispatch } from 'react-redux';
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Button, SearchField } from '@edx/paragon';
 
-import { setSearchQuery } from '../data';
+import { setSearchQuery, showPostEditor } from '../data';
 import messages from './messages';
 
 function PostActionsBar({ intl }) {
@@ -17,7 +17,11 @@ function PostActionsBar({ intl }) {
         onSubmit={(value) => dispatch(setSearchQuery(value))}
         placeholder={intl.formatMessage(messages.searchAllPosts)}
       />
-      <Button variant="outline-primary" className="ml-2">
+      <Button
+        variant="outline-primary"
+        className="ml-2"
+        onClick={() => dispatch(showPostEditor())}
+      >
         {intl.formatMessage(messages.addAPost)}
       </Button>
     </div>
diff --git a/src/discussions/posts/post-editor/PostEditor.jsx b/src/discussions/posts/post-editor/PostEditor.jsx
new file mode 100644
index 00000000..7c247442
--- /dev/null
+++ b/src/discussions/posts/post-editor/PostEditor.jsx
@@ -0,0 +1,110 @@
+import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import React from 'react';
+import { useDispatch } from 'react-redux';
+import { Button, Form } from '@edx/paragon';
+import { faComments, faQuestion, faStar } from '@fortawesome/free-solid-svg-icons';
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
+
+import { hidePostEditor } from '../data';
+
+import messages from './messages';
+
+function PostEditor({ intl }) {
+  const dispatch = useDispatch();
+  const cancelAdding = () => dispatch(hidePostEditor());
+
+  return (
+    <div className="mx-4 my-2">
+      <Form>
+        <Form.Group>
+          <Form.Label>
+            {intl.formatMessage(messages.type)}
+          </Form.Label>
+          <Form.Text className="mb-3" muted>
+            {intl.formatMessage(messages.typeDescription)} ({intl.formatMessage(messages.required)})
+          </Form.Text>
+
+          <Form.Check inline type="radio" id="question">
+            <Form.Check.Input type="radio" />
+            <Form.Check.Label>
+              <FontAwesomeIcon icon={faQuestion} />
+              <span className="ml-2">{intl.formatMessage(messages.questionType)}</span>
+            </Form.Check.Label>
+          </Form.Check>
+
+          <Form.Check inline type="radio" id="discussion">
+            <Form.Check.Input type="radio" />
+            <Form.Check.Label>
+              <FontAwesomeIcon icon={faComments} />
+              <span className="ml-2">{intl.formatMessage(messages.discussionType)}</span>
+            </Form.Check.Label>
+          </Form.Check>
+        </Form.Group>
+
+        <Form.Group>
+          <Form.Label>
+            {intl.formatMessage(messages.topicArea)}
+          </Form.Label>
+          <Form.Text id="topicAreaInput" muted>
+            {intl.formatMessage(messages.topicAreaDescription)} ({intl.formatMessage(messages.required)})
+          </Form.Text>
+          <Form.Control
+            as="select"
+            defaultValue="General"
+            aria-describedby="topicAreaInput"
+          >
+            {/* TODO: topics has to be filled in another PR */}
+            <option>General</option>
+          </Form.Control>
+        </Form.Group>
+
+        <Form.Group>
+          <Form.Label>
+            {intl.formatMessage(messages.title)}
+          </Form.Label>
+          <Form.Text id="titleInput" muted>
+            {intl.formatMessage(messages.titleDescription)} ({intl.formatMessage(messages.required)})
+          </Form.Text>
+          <Form.Control type="text" aria-describedby="titleInput" />
+        </Form.Group>
+
+        <Form.Group>
+          <Form.Label>
+            {intl.formatMessage(messages.questionText)}
+          </Form.Label>
+          <Form.Control as="textarea" rows="3" />
+        </Form.Group>
+
+        <Form.Group>
+          <Form.Check inline type="checkbox" id="follow">
+            <Form.Check.Input type="checkbox" />
+            <Form.Check.Label>
+              <FontAwesomeIcon icon={faStar} />
+              <span className="ml-2">{intl.formatMessage(messages.followPost)}</span>
+            </Form.Check.Label>
+          </Form.Check>
+
+          <Form.Check inline type="checkbox" id="anonymous">
+            <Form.Check.Input type="checkbox" />
+            <Form.Check.Label>
+              <span className="ml-2">{intl.formatMessage(messages.anonymousPost)}</span>
+            </Form.Check.Label>
+          </Form.Check>
+        </Form.Group>
+
+        <Button className="rounded-lg" variant="primary">
+          {intl.formatMessage(messages.submit)}
+        </Button>
+        <Button className="rounded-lg ml-2" variant="outline-primary" onClick={cancelAdding}>
+          {intl.formatMessage(messages.cancel)}
+        </Button>
+      </Form>
+    </div>
+  );
+}
+
+PostEditor.propTypes = {
+  intl: intlShape.isRequired,
+};
+
+export default injectIntl(PostEditor);
diff --git a/src/discussions/posts/post-editor/messages.js b/src/discussions/posts/post-editor/messages.js
new file mode 100644
index 00000000..7d590637
--- /dev/null
+++ b/src/discussions/posts/post-editor/messages.js
@@ -0,0 +1,66 @@
+import { defineMessages } from '@edx/frontend-platform/i18n';
+
+const messages = defineMessages({
+  type: {
+    id: 'discussions.post.editor.type',
+    defaultMessage: 'Post type',
+  },
+  typeDescription: {
+    id: 'discussions.post.editor.typeDescription',
+    defaultMessage: 'Questions raise issues that need answers. Discussions share ideas and start conversations.',
+  },
+  required: {
+    id: 'discussions.post.editor.required',
+    defaultMessage: 'Required',
+  },
+  questionType: {
+    id: 'discussions.post.editor.questionType',
+    defaultMessage: 'Question',
+  },
+  discussionType: {
+    id: 'discussions.post.editor.discussionType',
+    defaultMessage: 'Discussion',
+  },
+  topicArea: {
+    id: 'discussions.post.editor.topicArea',
+    defaultMessage: 'Topic area',
+  },
+  topicAreaDescription: {
+    id: 'discussions.post.editor.topicAreaDescription',
+    defaultMessage: 'Add your post to a relevant topic to help others find it.',
+  },
+  title: {
+    id: 'discussions.post.editor.title',
+    defaultMessage: 'Title',
+  },
+  titleDescription: {
+    id: 'discussions.post.editor.titleDescription',
+    defaultMessage: 'Add a clear and descriptive title to encourage participation.',
+  },
+  questionText: {
+    id: 'discussions.post.editor.questionText',
+    defaultMessage: 'Your question or idea (required)',
+  },
+  preview: {
+    id: 'discussions.post.editor.preview',
+    defaultMessage: 'Preview',
+  },
+  followPost: {
+    id: 'discussions.post.editor.followPost',
+    defaultMessage: 'follow this post',
+  },
+  anonymousPost: {
+    id: 'discussions.post.editor.anonymousPost',
+    defaultMessage: 'post anonymously',
+  },
+  submit: {
+    id: 'discussions.post.editor.submit',
+    defaultMessage: 'Submit',
+  },
+  cancel: {
+    id: 'discussions.post.editor.cancel',
+    defaultMessage: 'Cancel',
+  },
+});
+
+export default messages;