You want to build iOS applications for the iPhone and iPad, but where do you start? Forget sifting through tutorials and blog posts; this is a direct route into iOS development, taking you through the basics and showing you how to put the principles into practice. The goal of this tutorial is to help you become a professional developer by unleashing the full potential of iOS 11 to build applications. This tutorial will cover the essentials of the Swift language, building flexible iOS user interfaces working on multiple devices, looking into how software patterns such as Target-Action and Model-View-Controller are implemented in iOS 11, and focusing on specific issues to make you proficient at tasks more rapidly.