Write More Robust and Maintainable Android Apps with Kotlin Peter Sommerhoff takes a practical approach to teaching Kotlin by providing a larger set of code listings that demonstrate language features and by guiding readers through the development of two Android apps step by step.
Peter finds a good balance between what is essential and what can be left to readers, so this book is an efficient yet comprehensible source for starting programming with Kotlin.
Addison-wesley Professional Kotlin for android app development, paperback/peter sommerhoff
