Practical Kotlin Deep Dive Course
Unlocking the 'How' and 'Why' of the Kotlin internals and fundamentals. 158 interactive quizzes to test your knowledge and earn a certification.
Introduction
Practical Kotlin Deep Dive Course unpacks the "how" and "why" behind Kotlin—from core language fundamentals to compiler internals and Kotlin Multiplatform. Go beyond surface-level APIs by exploring real implementations, bytecode analysis, and design rationale drawn from KEEP proposals and compiler source code.
Unlike passive reading, this course includes 158 interactive quizzes: coding exercises, concept reinforcement, and advanced challenges. Each chapter concludes with a recap and assessments to solidify your knowledge.
Whether you're optimizing performance-critical code, handling complex coroutines, or writing compiler plugins—learn to reason about Kotlin with clarity and confidence.
About the Author
Google Developer Expert for Android, Kotlin, and Firebase
Creator of over 80 open source libraries and projects, achieving more than 15 million downloads annually by developers worldwide. Founder of Dove Letter, a subscription-based repository for Android, Jetpack Compose, and Kotlin topics.
Who This Course Is For
Intermediate Developers
Clear explanations of language features you use daily, helping understand not just how things work, but why.
Senior Developers
In-depth exploration of coroutines internals, compiler architecture, and multiplatform development.
Curious Developers
References to source code, design documents, and implementation details throughout.
What This Course Covers
Course Preview
Click image to expand
Course Features
158 Interactive Assessments
Each chapter includes carefully crafted questions to test your understanding. Multiple attempts allowed with your best score recorded.
Certificate of Completion
Earn a digital certificate signed by Jaewoong Eum upon successfully completing all quizzes and exercises.
3 Attempts Per Question
Learn from mistakes with multiple attempts. Answer options are randomized to ensure genuine understanding.
Pro Tips for Mastery
Deep dives into advanced topics, uncovering internal structures and offering expert insights you can apply immediately.
Earn Your Certificate
Upon successfully completing this course, you will receive a Kotlin Deep Dive Certificate, a digital certificate that validates your comprehensive understanding of Kotlin. This certificate includes:
- Official Recognition: A professionally designed digital certificate image.
- Personal Signature: Signed by Jaewoong Eum (skydoves), Google Developer Expert for Android, Kotlin, and Firebase.
- Completion Verification: Demonstrates that you have passed all quizzes and exercises throughout the course.
Available in Your Language
This course runs entirely in your browser on Leanpub's web platform. Use Chrome's built-in translation or any browser translation feature to take the course in your preferred language—Korean, Japanese, Chinese, Spanish, and more.
Based on the Same Book Content
This course has been built on top of the same content as the Practical Kotlin Deep Dive book, with the same ISBN number (979-8243872744).
Company Learning Budget?
If your company supports professional development through courses or certifications, this is a perfect fit. You can receive an official invoice after purchase to claim reimbursement from your employer.
Ready to Master Kotlin?
Join the course and deep dive into Kotlin fundamentals, coroutines, compiler internals, and multiplatform development. Earn your certificate upon completion.
Get on Leanpub$189$129
Dove Letter
A subscription where you can learn, discuss, and share new knowledge about Android, Kotlin, Jetpack Compose, and careers as a developer.
Subscribe Now