Donny Wals is a passionate, curious, iOS developer from The Netherlands. With several years of experience in building apps and sharing knowledge under his belt, Donny is a respected member of the iOS development community. Donny enjoys delivering talks on smaller and larger scales to share his knowledge and experiences with his peers.
In addition to sharing knowledge, Donny loves learning more about iOS, Apple's frameworks and development in general. This eagerness to learn has made him into a versatile iOS developer with knowledge of a significant number of Apple's frameworks and tools. During WWDC you will often find Donny binge-watching the talks that Apple engineers deliver to introduce new features and frameworks.
This book goes out to the entire iOS development community as a whole. Without such a great community I would not be where I am today (and there would be nobody to read this book). I would like to thank Ties Baltissen in particular for being my guinea pig during the process of writing and refining the content for this book.