Learn the fundamentals of the Kotlin programming language quickly and easily!Kotlin is new statically typed programming language running on the Java Virtual Machine, Android, browser, or native. By reading this book you will be able to quickly start work on your first Kotlin project. Today Kotlin is the main programming language for Android development. Thanks to its popularity Kotlin became the language for any other JVM development. For example, many backend developers are using Kotlin for Spring application We are all witnesses of the increasing number of Kotlin communities, conferences and workshops that have been held, many books that have been written, and demand for various software components. Many of these components have been ported from Java and some of them continued their development only in pure Kotlin. Kotlin is powerful. Everything that we did in Java can be raised to a completely new level.