"Android in Practice" is everything an experienced developer needs to develop first class applications for the Android platform. While not an omnibus tour, it includes everything a developer needs, including the OS tasking and networking models, UI, and storage.
Perhaps just as importantly, for honest-to-FSM professional developers it includes good coverage of setting up a build and test environment that will work with your pre-existing CI process.
"Hello, Android" is great if you don't know what you are doing. If you are a professional software developer, this is the book for you.