(Sun Di and Mu San, the editors of "The Secret Collection of Android Mobile Phone Use (Mastery Version)". Summary of "Secret Collection of Android Phone Use (Mastery Edition)": The content of this book is reasonably arranged for readers at all stages. You can select some chapters to read based on your needs. There are eight chapters in the book. Chapter 1 mainly introduces the factors to be considered and matters needing attention in the purchase process. Chapter 2 introduces the beginning of Android mobile phone use. Chapter 3 introduces software management. Chapter 4 explains how to personalize your mobile phone. Chapter 5 introduces system management and synchronous backup. Chapter 6 focuses on life related software download, installation and use. Chapter 7 introduces work related software download, installation and use, Chapter 8 focuses on the entertainment functions of Android phones, such as music players, photo software, video software, and fun games. This book is suitable for users of Android phones and Android enthusiasts to read, and it is applicable to various models of multiple versions and manufacturers of Android systems.)