This book is aimed at experienced Swift developers who want to optimize their programs on Apple platforms.

Kostiantyn Koval is a passionate developer with 5 years of experience. All the time, his main passion and work has been building iOS applications. So far, he has built many different applications, including games, enterprise apps, and big platforms. He fell in love with Swift the first minute he saw it, and keeps expressing this to the rest of the world. Other than iOS, he is also interested in technologies and languages such as Scala, Clojure, LLVM, Ruby, JavaScript, and others. He loves open source and blogging. You can find him on GitHub at https://github.com/kostiakoval and his blogs at https://medium.com/@kostiakoval. Other places to contact him are http://kostiakoval.github.io and Twitter at @KostiaKoval. His hobbies are programming, building start-ups, and making this world better with software.