Getting started with Kotlin

manning book Kotlin in action
https://try.kotlinlang.org/
https://kotlinlang.org/
https://try.kotlinlang.org/#/Examples/Hello,%20world!/Simplest%20version/Simplest%20version.kt
https://kotlinlang.org/docs/tutorials/koans.html
https://kotlinlang.org/docs/reference/
https://kotlinlang.org/docs/reference/idioms.html
https://kotlinlang.org/
https://github.com/JetBrains/kotlin-examples
http://kotlinbyexample.org

https://github.com/JetBrains/kotlin-workshop has slide deck presenstations

Presentations used for the workshop at KotlinConf:

1. Intro
2. Nullable Types
3. Object-Oriented Programming in Kotlin
4. Kotlin Types
5. Functional Programming in Kotlin
6. The Power of inline
7. Lambda With Receiver
8. Conventions
9. Intro to Coroutines