My Learn Java for Android Development book focuses on threading and the Threading API found in Java. It does not focus on Android's threading model of loopers, handlers, and message queues. It also does not discuss memory profiling.
I wrote this book to teach the Java language and foundational APIs (such as collections) that will be helpful for the aspiring Android developer to know before diving into Android. As a result, my discussion of Android topics is severely limited (there is a small example in Chapter 10 and a few minor items elsewhere in the book).
I'm currently working on a book for Apress called Android Recipes, which is due out next March. This new book will focus on Android topics, and will include Android's threading model.