diff --git a/RecrownedAthenaeum/UI/BookSystem/Book.cs b/RecrownedAthenaeum/UI/BookSystem/Book.cs
index 21cb024..f6bc04c 100644
--- a/RecrownedAthenaeum/UI/BookSystem/Book.cs
+++ b/RecrownedAthenaeum/UI/BookSystem/Book.cs
@@ -14,7 +14,7 @@ namespace RecrownedAthenaeum.UI.BookSystem
     public class Book
     {
         readonly ContentManagerController assets;
-        readonly Skin skin;
+        readonly ISkin skin;
         Camera2D camera;
         Page targetPage;
         Rectangle dimensions;
@@ -25,7 +25,7 @@ namespace RecrownedAthenaeum.UI.BookSystem
         /// </summary>
         /// <param name="assets"><see cref="ContentManagerController"/> that holds the assets that are to be used in the pages for this book during initialization.</param>
         /// <param name="skin">The skin that will be passed to pages during their initialization.</param>
-        public Book(ContentManagerController assets, Skin skin)
+        public Book(ContentManagerController assets, ISkin skin)
         {
             this.assets = assets;
         }
diff --git a/RecrownedAthenaeum/UI/BookSystem/Page.cs b/RecrownedAthenaeum/UI/BookSystem/Page.cs
index 64afd12..29e78fb 100644
--- a/RecrownedAthenaeum/UI/BookSystem/Page.cs
+++ b/RecrownedAthenaeum/UI/BookSystem/Page.cs
@@ -47,7 +47,7 @@ namespace RecrownedAthenaeum.UI.BookSystem
         /// </summary>
         /// <param name="assets">The assets to be used during initialization passed by the book this page belongs to.</param>
         /// <param name="skin">The skin the book containing this page is given that can be used by this page.</param>
-        protected internal virtual void Initialize(ContentManagerController assets, Skin skin)
+        protected internal virtual void Initialize(ContentManagerController assets, ISkin skin)
         {
 
         }