None
3 stars
Pros: Some parts are quite entertaining. And it has some good advices, like "learn Java" and don't run after every new beauty like "Kotlin".
Cons: The author is probably a gifted Android developer, but his teaching skills are far from being perfect. I wish the book had more illustrations and instead of lots of pages with program code that are difficult to read with the page format used I would have appreciated a dowload address for the examples discussed in the book. So at the end the book is a not so deep overview on the basic concepts of Android programming, but at the end you just find out that you still don't know enough to start real Android development.