Welcome to the book, and welcome to the world of Android development. In a little under ten years, Android has helped change the face of modern mobile computing and telephony and launched a revolution in how applications are developed, and by whom. With this book in your hands, you are now part of the great Android explosion! We’re going to assume that you want to get straight at working with Android, so we're not going to bore you with a fireside chat about Android's history, major characters, plaudits, or any other prose. We're going to get straight to it!