I can't tell you how much I've been anticipating this book ever since I first heard it announced. This is a very short review, because really, you should read it yourself. But let me spoil one thing: It's amazing.

MavenCental is the place to be for serious libraries, but setting up publication to it can be a truly daunting task. Here's the guide to how we do it.

Primary constructors play a fundamental role in Kotlin classes. Let's take a close look at them, and really understand what exactly is part of a primary constructor, and what makes this constructor so special.

A fun little challenge in Kotlin API design. Give it a try!

When developing a library, designing an easy to use API while hiding unnecessary implementation details from clients is fundamental. Let's look at some API design choices we've made for our library Krate, an Android SharedPreferences wrapper.

Not breaking client code is an essential duty of a library developer. Let's take a look at a couple rarely discussed issues you might face in this area.

A perhaps overly thorough look at how extensible state saving is implemented in the AndroidX libraries, and how ViewModel state saving specifically is hooked into this system.

A quick preview of the new SavedState support for Android Architecture Component ViewModels.