说明：  本書寫給初學者和中級用戶。初學者會發現所有的信息，這些信息告訴他們如何開始使用Android的設備，中級用戶將會發現更多的Android的設備技巧，竅門和編程Android應用程序。
(We’re writing for both beginners and intermediate users. Beginners will find all the information that they need to get started using the Android-based device, and intermediate users will find additional tips, tricks, and information on programming Android applications.)