diff --git a/FeedlySharp/Endpoints/Auth.cs b/FeedlySharp/Endpoints/Auth.cs
index 4337a40..b3e3962 100644
--- a/FeedlySharp/Endpoints/Auth.cs
+++ b/FeedlySharp/Endpoints/Auth.cs
@@ -1,8 +1,6 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Net;
-using System.Text;
 using System.Threading.Tasks;
 using FeedlySharp.Extensions;
 using FeedlySharp.Models;
@@ -13,6 +11,13 @@ namespace FeedlySharp
 {
   public partial class FeedlyClient
   {
+    /// <summary>
+    /// Creates the authentication URI to redirect the user to.
+    /// </summary>
+    /// <remarks>auth-endpoint (https://developer.feedly.com/v3/auth/#authenticating-a-user-and-obtaining-a-code)</remarks>
+    /// <param name="scope">The scope.</param>
+    /// <param name="state">The state which is passed and returned when finished.</param>
+    /// <returns></returns>
     public string GetAuthenticationUri(string scope = "subscriptions", string state = default(String))
     {
       return String.Format("{0}/v3/auth/auth?redirect_uri={1}&client_id={2}&scope={3}&state={4}&response_type=code",
@@ -24,13 +29,21 @@ namespace FeedlySharp
       );
     }
 
-
+    /// <summary>
+    /// Parses the authentication response URI and creates the response object.
+    /// </summary>
+    /// <param name="uri">The URI where the user has been redirected to after authentication.</param>
+    /// <returns></returns>
     public AuthenticationResponse ParseAuthenticationResponseUri(string uri)
     {
       return ParseAuthenticationResponseUri(new Uri(uri, UriKind.Absolute));
     }
 
-
+    /// <summary>
+    /// Parses the authentication response URI and creates the response object.
+    /// </summary>
+    /// <param name="uri">The URI where the user has been redirected to after authentication.</param>
+    /// <returns></returns>
     public AuthenticationResponse ParseAuthenticationResponseUri(Uri uri)
     {
       Dictionary<string, string> queryParams = uri.ParseQueryString();
@@ -46,6 +59,13 @@ namespace FeedlySharp
     }
 
 
+    /// <summary>
+    /// Request to get the access token.
+    /// </summary>
+    /// <remarks>auth-endpoint (https://developer.feedly.com/v3/auth/#exchanging-a-code-for-a-refresh-token-and-an-access-token)</remarks>
+    /// <param name="authenticationCode">The authentication code.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns></returns>
     public async Task<AccessTokenResponse> RequestAccessToken(string authenticationCode, CancellationToken cancellationToken = default(CancellationToken))
     {
       return await Client.Request<AccessTokenResponse>(HttpMethod.Post, "v3/auth/token", new Dictionary<string, string>()
@@ -59,6 +79,13 @@ namespace FeedlySharp
     }
 
 
+    /// <summary>
+    /// Request to get a new refresh token and update authentication.
+    /// </summary>
+    /// <remarks>auth-endpoint (https://developer.feedly.com/v3/auth/#using-a-refresh-token)</remarks>
+    /// <param name="refreshToken">The current refresh token.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns></returns>
     public async Task<AccessTokenResponse> RequestRefreshToken(string refreshToken, CancellationToken cancellationToken = default(CancellationToken))
     {
       return await Client.Request<AccessTokenResponse>(HttpMethod.Post, "v3/auth/token", new Dictionary<string, string>()
@@ -71,6 +98,13 @@ namespace FeedlySharp
     }
 
 
+    /// <summary>
+    /// Revokes the current refresh token and logs out.
+    /// </summary>
+    /// <remarks>auth-endpoint (https://developer.feedly.com/v3/auth/#revoking-a-refresh-token)</remarks>
+    /// <param name="refreshToken">The refresh token.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns></returns>
     public async Task RevokeRefreshToken(string refreshToken, CancellationToken cancellationToken = default(CancellationToken))
     {
       await Client.Request<object>(HttpMethod.Post, "v3/auth/token", new Dictionary<string, string>()
diff --git a/FeedlySharp/Endpoints/Categories.cs b/FeedlySharp/Endpoints/Categories.cs
index f213898..59a2f2e 100644
--- a/FeedlySharp/Endpoints/Categories.cs
+++ b/FeedlySharp/Endpoints/Categories.cs
@@ -1,7 +1,6 @@
 using FeedlySharp.Models;
 using System;
 using System.Collections.Generic;
-using System.Net;
 using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
@@ -10,18 +9,40 @@ namespace FeedlySharp
 {
   public partial class FeedlyClient
   {
+    /// <summary>
+    /// Returns all categories created by the user.
+    /// Authentication required.
+    /// </summary>
+    /// <remarks>categories-endpoint (https://developer.feedly.com/v3/categories/#get-the-list-of-all-categories)</remarks>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns></returns>
     public async Task<List<FeedlyCategory>> GetCategories(CancellationToken cancellationToken = default(CancellationToken))
     {
       return await Client.Request<List<FeedlyCategory>>(HttpMethod.Get, "v3/categories", null, false, true, cancellationToken);
     }
 
-
+    /// <summary>
+    /// Renames a user category.
+    /// Authentication required.
+    /// </summary>
+    /// <remarks>categories-endpoint (https://developer.feedly.com/v3/categories/#change-the-label-of-an-existing-category)</remarks>
+    /// <param name="id">The category id.</param>
+    /// <param name="label">The new label.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns></returns>
     public async Task RenameCategory(string id, string label, CancellationToken cancellationToken = default(CancellationToken))
     {
       await Client.Request<FeedlyUser>(HttpMethod.Post, String.Format("v3/categories/{0}", ValueToResource("category", id)), new { label = label }, true, true, cancellationToken);
     }
 
-
+    /// <summary>
+    /// Deletes a user category.
+    /// Authentication required.
+    /// </summary>
+    /// <remarks>categories-endpoint (https://developer.feedly.com/v3/categories/#delete-a-category)</remarks>
+    /// <param name="id">The category id.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns></returns>
     public async Task DeleteCategory(string id, CancellationToken cancellationToken = default(CancellationToken))
     {
       await Client.Request<FeedlyUser>(HttpMethod.Delete, String.Format("v3/categories/{0}", ValueToResource("category", id)), null, false, true, cancellationToken);