Congratulations! You have finished exploring the basics of Xcode. When we start building our app, we will cover the more essential parts of Xcode in depth. In the next few chapters, we will begin learning about the Swift programming language. We will use the latest Swift version, and this will be a basic intro into the programming language. If you are familiar with Swift, feel free to skip ahead to Chapter 6, Starting the UI Setup. Even if you are familiar with Swift, it is always good to go back through the basics as a refresher. So, let's get started!