diff --git a/packages/editor/README.md b/packages/editor/README.md
index 9b4ec07bfded2..49090369fc070 100644
--- a/packages/editor/README.md
+++ b/packages/editor/README.md
@@ -1268,11 +1268,24 @@ _Returns_
 
 ### PostSlug
 
-Undocumented declaration.
+Renders the PostSlug component. It provide a control for editing the post slug.
+
+_Returns_
+
+-   `Component`: The component to be rendered.
 
 ### PostSlugCheck
 
-Undocumented declaration.
+Wrapper component that renders its children only if the post type supports the slug.
+
+_Parameters_
+
+-   _props_ `Object`: Props.
+-   _props.children_ `Element`: Children to be rendered.
+
+_Returns_
+
+-   `Component`: The component to be rendered.
 
 ### PostSticky
 
diff --git a/packages/editor/src/components/post-slug/check.js b/packages/editor/src/components/post-slug/check.js
index 80928e4cf1dec..86bf04814c934 100644
--- a/packages/editor/src/components/post-slug/check.js
+++ b/packages/editor/src/components/post-slug/check.js
@@ -3,6 +3,14 @@
  */
 import PostTypeSupportCheck from '../post-type-support-check';
 
+/**
+ * Wrapper component that renders its children only if the post type supports the slug.
+ *
+ * @param {Object}  props          Props.
+ * @param {Element} props.children Children to be rendered.
+ *
+ * @return {Component} The component to be rendered.
+ */
 export default function PostSlugCheck( { children } ) {
 	return (
 		<PostTypeSupportCheck supportKeys="slug">
diff --git a/packages/editor/src/components/post-slug/index.js b/packages/editor/src/components/post-slug/index.js
index 343816dbd2ef4..cc86405157b88 100644
--- a/packages/editor/src/components/post-slug/index.js
+++ b/packages/editor/src/components/post-slug/index.js
@@ -58,6 +58,11 @@ function PostSlugControl() {
 	);
 }
 
+/**
+ * Renders the PostSlug component. It provide a control for editing the post slug.
+ *
+ * @return {Component} The component to be rendered.
+ */
 export default function PostSlug() {
 	return (
 		<PostSlugCheck>