diff --git a/src/Discord.Net.Core/Entities/Activities/ActivityType.cs b/src/Discord.Net.Core/Entities/Activities/ActivityType.cs
index c7db7b247..4cc71b119 100644
--- a/src/Discord.Net.Core/Entities/Activities/ActivityType.cs
+++ b/src/Discord.Net.Core/Entities/Activities/ActivityType.cs
@@ -1,10 +1,17 @@
-namespace Discord
+namespace Discord
 {
+    /// <summary>
+    /// Defines user's activity type.
+    /// </summary>
     public enum ActivityType
     {
+        /// <summary> Activity that represents a user that is playing a game. </summary>
         Playing = 0,
+        /// <summary> Activity that represents a user that is streaming online. </summary>
         Streaming = 1,
+        /// <summary> Activity that represents a user that is listening to a song. </summary>
         Listening = 2,
+        /// <summary> Activity that represents a user that is watching a media. </summary>
         Watching = 3
     }
 }
diff --git a/src/Discord.Net.Core/Entities/Messages/IAttachment.cs b/src/Discord.Net.Core/Entities/Messages/IAttachment.cs
index 225e9cf2e..d0f99ba4a 100644
--- a/src/Discord.Net.Core/Entities/Messages/IAttachment.cs
+++ b/src/Discord.Net.Core/Entities/Messages/IAttachment.cs
@@ -1,14 +1,21 @@
-namespace Discord
+namespace Discord
 {
     public interface IAttachment
     {
+        /// <summary> The snowflake ID of the attachment. </summary>
         ulong Id { get; }
 
+        /// <summary> The filename of the attachment. </summary>
         string Filename { get; }
+        /// <summary> The URL of the attachment. </summary>
         string Url { get; }
+        /// <summary> The proxied URL of the attachment. </summary>
         string ProxyUrl { get; }
+        /// <summary> The file size of the attachment. </summary>
         int Size { get; }
+        /// <summary> The height of the attachment if it is an image, or return <see langword="null"/> when it is not. </summary>
         int? Height { get; }
+        /// <summary> The width of the attachment if it is an image, or return <see langword="null"/> when it is not. </summary>
         int? Width { get; }
     }
 }
diff --git a/src/Discord.Net.Core/Entities/Permissions/ChannelPermission.cs b/src/Discord.Net.Core/Entities/Permissions/ChannelPermission.cs
index 740b6c30b..3db506487 100644
--- a/src/Discord.Net.Core/Entities/Permissions/ChannelPermission.cs
+++ b/src/Discord.Net.Core/Entities/Permissions/ChannelPermission.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 
 namespace Discord
 {
@@ -6,33 +6,54 @@ namespace Discord
     public enum ChannelPermission : ulong
     {
         // General
+        /// <summary> Allows creation of instant invites. </summary>
         CreateInstantInvite = 0x00_00_00_01,
-        ManageChannels      = 0x00_00_00_10,
+        /// <summary> Allows management and editing of channels. </summary>
+        ManageChannels = 0x00_00_00_10,
 
         // Text
-        AddReactions        = 0x00_00_00_40,
+        /// <summary> Allows for the addition of reactions to messages. </summary>
+        AddReactions = 0x00_00_00_40,
+        /// <summary> Allows for reading of message. </summary>
         [Obsolete("Use ViewChannel instead.")]
-        ReadMessages        = ViewChannel,
-        ViewChannel         = 0x00_00_04_00,
-        SendMessages        = 0x00_00_08_00,
-        SendTTSMessages     = 0x00_00_10_00,
-        ManageMessages      = 0x00_00_20_00,
-        EmbedLinks          = 0x00_00_40_00,
-        AttachFiles         = 0x00_00_80_00,
-        ReadMessageHistory  = 0x00_01_00_00,
-        MentionEveryone     = 0x00_02_00_00,
-        UseExternalEmojis   = 0x00_04_00_00,
+        ReadMessages = ViewChannel,
+        /// <summary> Allows guild members to view a channel, which includes reading messages in text channels. </summary>
+        ViewChannel = 0x00_00_04_00,
+        /// <summary> Allows for sending messages in a channel. </summary>
+        SendMessages = 0x00_00_08_00,
+        /// <summary> Allows for sending of text-to-speech messages. </summary>
+        SendTTSMessages = 0x00_00_10_00,
+        /// <summary> Allows for deletion of other users messages. </summary>
+        ManageMessages = 0x00_00_20_00,
+        /// <summary> Links sent by users with this permission will be auto-embedded. </summary>
+        EmbedLinks = 0x00_00_40_00,
+        /// <summary> Allows for uploading images and files. </summary>
+        AttachFiles = 0x00_00_80_00,
+        /// <summary> Allows for reading of message history. </summary>
+        ReadMessageHistory = 0x00_01_00_00,
+        /// <summary> Allows for using the @everyone tag to notify all users in a channel, and the @here tag to notify all online users in a channel. </summary>
+        MentionEveryone = 0x00_02_00_00,
+        /// <summary> Allows the usage of custom emojis from other servers. </summary>
+        UseExternalEmojis = 0x00_04_00_00,
 
         // Voice
-        Connect             = 0x00_10_00_00,
-        Speak               = 0x00_20_00_00,
-        MuteMembers         = 0x00_40_00_00,
-        DeafenMembers       = 0x00_80_00_00,
-        MoveMembers         = 0x01_00_00_00,
-        UseVAD              = 0x02_00_00_00,
+        /// <summary> Allows for joining of a voice channel. </summary>
+        Connect = 0x00_10_00_00,
+        /// <summary> Allows for speaking in a voice channel. </summary>
+        Speak = 0x00_20_00_00,
+        /// <summary> Allows for muting members in a voice channel. </summary>
+        MuteMembers = 0x00_40_00_00,
+        /// <summary> Allows for deafening of members in a voice channel. </summary>
+        DeafenMembers = 0x00_80_00_00,
+        /// <summary> Allows for moving of members between voice channels. </summary>
+        MoveMembers = 0x01_00_00_00,
+        /// <summary> Allows for using voice-activity-detection in a voice channel. </summary>
+        UseVAD = 0x02_00_00_00,
 
         // More General
-        ManageRoles         = 0x10_00_00_00,
-        ManageWebhooks      = 0x20_00_00_00,
+        /// <summary> Allows management and editing of roles. </summary>
+        ManageRoles = 0x10_00_00_00,
+        /// <summary> Allows management and editing of webhooks. </summary>
+        ManageWebhooks = 0x20_00_00_00,
     }
 }
diff --git a/src/Discord.Net.Core/Entities/Permissions/ChannelPermissions.cs b/src/Discord.Net.Core/Entities/Permissions/ChannelPermissions.cs
index 1a8aad53c..92cc90c09 100644
--- a/src/Discord.Net.Core/Entities/Permissions/ChannelPermissions.cs
+++ b/src/Discord.Net.Core/Entities/Permissions/ChannelPermissions.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 
@@ -7,17 +7,17 @@ namespace Discord
     [DebuggerDisplay("{DebuggerDisplay,nq}")]
     public struct ChannelPermissions
     {
-        /// <summary> Gets a blank ChannelPermissions that grants no permissions. </summary>
+        /// <summary> Gets a blank <see cref="ChannelPermissions"/> that grants no permissions. </summary>
         public static readonly ChannelPermissions None = new ChannelPermissions();
-        /// <summary> Gets a ChannelPermissions that grants all permissions for text channels. </summary>
+        /// <summary> Gets a <see cref="ChannelPermissions"/> that grants all permissions for text channels. </summary>
         public static readonly ChannelPermissions Text = new ChannelPermissions(0b01100_0000000_1111111110001_010001);
-        /// <summary> Gets a ChannelPermissions that grants all permissions for voice channels. </summary>
+        /// <summary> Gets a <see cref="ChannelPermissions"/> that grants all permissions for voice channels. </summary>
         public static readonly ChannelPermissions Voice = new ChannelPermissions(0b00100_1111110_0000000000000_010001);
-        /// <summary> Gets a ChannelPermissions that grants all permissions for direct message channels. </summary>
+        /// <summary> Gets a <see cref="ChannelPermissions"/> that grants all permissions for direct message channels. </summary>
         public static readonly ChannelPermissions DM = new ChannelPermissions(0b00000_1000110_1011100110000_000000);
-        /// <summary> Gets a ChannelPermissions that grants all permissions for group channels. </summary>
+        /// <summary> Gets a <see cref="ChannelPermissions"/> that grants all permissions for group channels. </summary>
         public static readonly ChannelPermissions Group = new ChannelPermissions(0b00000_1000110_0001101100000_000000);
-        /// <summary> Gets a ChannelPermissions that grants all permissions for a given channelType. </summary>
+        /// <summary> Gets a <see cref="ChannelPermissions"/> that grants all permissions for a given channelType. </summary>
         public static ChannelPermissions All(IChannel channel)
         {
             switch (channel)
@@ -30,7 +30,7 @@ namespace Discord
             }
         }
 
-        /// <summary> Gets a packed value representing all the permissions in this ChannelPermissions. </summary>
+        /// <summary> Gets a packed value representing all the permissions in this <see cref="ChannelPermissions"/>. </summary>
         public ulong RawValue { get; }
 
         /// <summary> If True, a user may create invites. </summary>
@@ -117,7 +117,7 @@ namespace Discord
             RawValue = value;
         }
 
-        /// <summary> Creates a new ChannelPermissions with the provided permissions. </summary>
+        /// <summary> Creates a new <see cref="ChannelPermissions"/> with the provided permissions. </summary>
         public ChannelPermissions(bool createInstantInvite = false, bool manageChannel = false,
             bool addReactions = false,
             bool viewChannel = false, bool sendMessages = false, bool sendTTSMessages = false, bool manageMessages = false,
@@ -129,7 +129,7 @@ namespace Discord
                 speak, muteMembers, deafenMembers, moveMembers, useVoiceActivation, manageRoles, manageWebhooks)
         { }
 
-        /// <summary> Creates a new ChannelPermissions from this one, changing the provided non-null permissions. </summary>
+        /// <summary> Creates a new <see cref="ChannelPermissions"/> from this one, changing the provided non-null permissions. </summary>
         public ChannelPermissions Modify(bool? createInstantInvite = null, bool? manageChannel = null,
             bool? addReactions = null,
             bool? viewChannel = null, bool? sendMessages = null, bool? sendTTSMessages = null, bool? manageMessages = null,
@@ -157,4 +157,4 @@ namespace Discord
         public override string ToString() => RawValue.ToString();
         private string DebuggerDisplay => $"{string.Join(", ", ToList())}";
     }
-}
\ No newline at end of file
+}
diff --git a/src/Discord.Net.Rest/Entities/Channels/ChannelType.cs b/src/Discord.Net.Rest/Entities/Channels/ChannelType.cs
index e9f069a50..c1fdc5af5 100644
--- a/src/Discord.Net.Rest/Entities/Channels/ChannelType.cs
+++ b/src/Discord.Net.Rest/Entities/Channels/ChannelType.cs
@@ -1,11 +1,17 @@
-namespace Discord
+namespace Discord
 {
+    /// <summary> Defines the types of channels. </summary>
     public enum ChannelType
     {
+        /// <summary> Represents a text channel. </summary>
         Text = 0,
+        /// <summary> Represents a Direct Message channel. </summary>
         DM = 1,
+        /// <summary> Represents a voice channel. </summary>
         Voice = 2,
+        /// <summary> Represents a group channel. </summary>
         Group = 3,
+        /// <summary> Represents a category channel. </summary>
         Category = 4
     }
 }
diff --git a/src/Discord.Net.Rest/Entities/Messages/Attachment.cs b/src/Discord.Net.Rest/Entities/Messages/Attachment.cs
index e185234ac..9d3912bfc 100644
--- a/src/Discord.Net.Rest/Entities/Messages/Attachment.cs
+++ b/src/Discord.Net.Rest/Entities/Messages/Attachment.cs
@@ -1,4 +1,4 @@
-using System.Diagnostics;
+using System.Diagnostics;
 using Model = Discord.API.Attachment;
 
 namespace Discord
@@ -6,12 +6,19 @@ namespace Discord
     [DebuggerDisplay(@"{DebuggerDisplay,nq}")]
     public class Attachment : IAttachment
     {
+        /// <inheritdoc/>
         public ulong Id { get; }
+        /// <inheritdoc/>
         public string Filename { get; }
+        /// <inheritdoc/>
         public string Url { get; }
+        /// <inheritdoc/>
         public string ProxyUrl { get; }
+        /// <inheritdoc/>
         public int Size { get; }
+        /// <inheritdoc/>
         public int? Height { get; }
+        /// <inheritdoc/>
         public int? Width { get; }
 
         internal Attachment(ulong id, string filename, string url, string proxyUrl, int size, int? height, int? width)