Cloud computing is shared pools of configurable computer system resources and higher-level services that can be rapidly provisioned with minimal management effort, often over the Internet. Cloud computing relies on sharing of resources to achieve coherence and economies of scale, similar to a public utility.

In the present book, twelve typical literatures about cloud computing published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on cloud computing, public-resource computing, cloud engineering,  cloud security, cloud service provider and data security, etc. We hope this book can demonstrate advances in cloud computing as well as give references to the researchers, students and other related people.