I've been working on and using a 1 page cheatsheet...

# android

[Kishore]

I've been working on and using a 1 page cheatsheet/reference guide for Kotlin. Its here http://www.slatekit.com/kotlin101.html. Its been used for on-boarding purposes. This is good as either a quick comparison of how Kotlin looks/works w/ respect to other languages and/or as a fast reference guide once you're familiar with Kotlin via other books/guides.