Kotlin documentation is a good place to start, check out these links to get your feet wet:
Many modern IDEs support Kotlin and help in writing idiomatic Kotlin code:
Kotlin community is open, helpful, and welcoming. Don't hesitate to join and ask on any platform you like:
Hands-on experience is the way to master your Kotlin skills on real examples right in the browser:
All Kotlin aspects are well covered in Books, check out these books to start:
Kotlin is well covered in online courses, check out recommended courses here:
"Certified by JetBrains" is a program created to work with training providers to verify their existing Kotlin training programs, and at the same time build a trusted network of global partners:
Check out these community resources for more information:
© 2010–2019 JetBrains s.r.o.
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/docs/reference/index.html