Further Resources & Next Steps

You have covered Kotlin from the basics through coroutines and a full Android architecture. Here is where to go next.

Practice

• Kotlin Koans — bite-sized exercises in the browser.
• Advent of Code — solve puzzles in Kotlin.
• Extend the capstone projects with the challenges at the end of Part 9.

Deepen your Kotlin

• Effective Kotlin — idioms and best practices.
• Kotlin Multiplatform — share code across Android, iOS, web, and desktop.
• Ktor — build backends in Kotlin.

Deepen your Android

• Now in Android — Google’s reference app showcasing modern architecture and modularization.
• Android Codelabs — hands-on, step-by-step tutorials.
• Compose Pathways — official Compose learning path.

Stay current

• Kotlin Blog
• Android Developers Blog
• Talking Kotlin podcast

Contributing to this guide

Found an error or want to add a topic? Open an issue or pull request on the GitHub repository.