diff --git a/Chapter 12/callback b/Chapter 12/callback
new file mode 100644
index 0000000..93bc854
--- /dev/null
+++ b/Chapter 12/callback	
@@ -0,0 +1,9 @@
+function greet(fullName){
+    console.log(`Welcome, ${fullName[0]} ${fullName[1]}`)
+}
+function processCall(user,callback){
+    const fullName = user.split(" ");
+    callback(fullName);
+}
+
+processCall("Laurence Svekis",greet);