: It emphasizes building production-quality applications and writing "idiomatic" Kotlin code rather than just teaching syntax. Go to product viewer dialog for this item. Kotlin in Action
(Russian title: "Kotlin в действии" ) is widely considered the "gold standard" for learning Kotlin, primarily because its authors are core developers of the language from JetBrains. Overview of the Book
: Experienced Java developers looking to transition to Kotlin or use it for JVM/Android development.