diff --git a/app.js b/app.js
index ce84da1..f258bf1 100644
--- a/app.js
+++ b/app.js
@@ -1,3 +1,15 @@
 "use strict";
 
 console.log("App");
+
+function addBook(){
+    console.log("Add Book");
+}
+
+function deleteBook() {
+    console.log("Delete Book");
+}
+
+function editBook() {
+    console.log("Edit book");
+}