If you want to get your feet wet with Android, this book is the way to go.
Ed leads you on with simple steps, starting with the basic and keeps on building on it. The book is arranged logically, building on previous material. The "Fast Forward" sections help you jump around for interesting material, if you wish to do so. Ed has managed to sprinkle the book with numerous tips and tricks, which are arranged so as to practically read your mind and provide you helpful hints right there itself.