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kotlinlang

Chapter 14 of the _Kotlin: An Illustrated Guide_ online book is ready! This chapter covers abstract and open classes, interface/implementation, inheritance, polymorphism, and more. Only about 6 more chapters left to write in the book! :slightly_smiling_face:

<https://typealias.com/start/kotlin-abstract-and-open-classes/><https://t.co/taE8NqME9O|…>

That’s amazing work! :+1: 
It really reminds me on how the Heads First books are made. :slightly_smiling_face: 

My trainee just finished reading Head First Kotlin and I will let her read your guide as a recap. Thank you for making this.

Thanks so much, Stefan! I hope the illustrated guide is helpful for your trainee. And yes - I read a few of those Head First books a while back, and they're great (especially the ones written by Sierra and Bates)! :slightly_smiling_face:

I'm impressed by how well-written this is. Those illustrations look fantastic but the code examples and overall layout &amp; writing is already great. Well done! :clap::skin-tone-3:

Thank you so much, <@U05G32ABSSK>! :slightly_smiling_face: