diff --git a/server/schema/schema.js b/server/schema/schema.js
index d125a0c..b1b0733 100644
--- a/server/schema/schema.js
+++ b/server/schema/schema.js
@@ -11,9 +11,9 @@ const {
 
 // temp data
 const books = [
-  { name: 'Name of the Wind', genre: 'Fantasy', id: '1' },
-  { name: 'The Final Empire', genre: 'Fantasy', id: '2' },
-  { name: 'The Long Earth', genre: 'Sci-Fi', id: '3' }
+  { name: 'Name of the Wind', genre: 'Fantasy', id: '1', authorId: '1' },
+  { name: 'The Final Empire', genre: 'Fantasy', id: '2', authorId: '2' },
+  { name: 'The Long Earth', genre: 'Sci-Fi', id: '3', authorId: '3' }
 ];
 const authors = [
   { name: 'Patrick Rothfuss', age: 44, id: '1' },
@@ -26,7 +26,13 @@ const BookType = new GraphQLObjectType({
   fields: () => ({
     id: { type: GraphQLID },
     name: { type: GraphQLString },
-    genre: { type: GraphQLString }
+    genre: { type: GraphQLString },
+    author: {
+      type: AuthorType,
+      resolve (parent, args) {
+        return _.find(authors, { id: parent.authorId });
+      }
+    }
   })
 });