We just survived a crash course through the world of storyboards, Auto Layout, and size classes. We learned how to map our screen flow with storyboards, and how to connect view controllers with segues. Then we set up a system of constraints to intelligently scale our UI depending on both size and orientation. It's a bit daunting and a lot to take in, but Auto Layout is just one of those things that takes time and practice to get good at. Try mocking up some apps with placeholder UI elements, and setting up constraints as practice!

In the next chapter we'll be learning how to set up, integrate, and master Git source control in Xcode 8.