Google now support Kotlin as a first class language in Android development. here is the best resources to start learning #kotlin what is Kotlin? (wikipedia) Get Started with Kotlin on Android Why use Kotlin for Android Development? The official Kotlin website Android Development with Kotlin - Jake Wharton From Kotlin To Java Better Android Development with Kotlin You can do better with Kotlin Idiomatic Kotlin. Best Practices How we made Basecamp 3’s Android app 100% Kotlin here is an awesome repository on github – “awesome-kotlin” Antonio leiva blog sereis on Kotlin check his paid book too: Introduction to Kotlin (Google I/O ’17) Life is Great and Everything Will Be Ok, Kotlin is Here (Google I/O ’17)