This book features clear logic and novel cases. Readers will see the whole picture of “blockchain +”: blockchain + finance, blockchain + credit investigation, blockchain + insurance, blockchain + energy, blockchain + health care, blockchain + copyright, blockchain + IoT, blockchain + agriculture, blockchain + public welfare, blockchain + social contact. In short, this book reaches out to almost all fields that apply blockchain technology. Moreover, there are analysis and prediction of blockchain application in the future. This book is all-embracing and easy to understand; it is mainly oriented to the readers dealing with financial matters, digital currency and blockchain R&D, as well as to executives or common readers that are interested in this subject.