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kotlinlang

Hi Community 

I am a Android Developer since 2 .5 Years using Kotlin, can anyone suggest me regarding learning kotlin in-depth as expertise 

Have you checked this :point_down:
<https://kt.academy/|https://kt.academy/>

What about <https://www.packtpub.com/product/kotlin-design-patterns-and-best-practices-second-edition/9781801815727|"Kotlin Design Patterns and Best Practices">?

This is a good time to read <https://www.manning.com/books/kotlin-in-action|Kotlin In Action> (written by JetBrains team) and solve some <https://github.com/igorwojda/kotlin-coding-challenges/|Kotlin Challenges> to practice problem solving using Kotlin (my repo)

Kotlin in Action but the EarlyAccess second Edition version: <https://www.manning.com/books/kotlin-in-action-second-edition> You'll get the ebook for the first edition for free, and the first 9 chapters of the second edition are also already done.