This is a relatively old book on blockchain , The content of this book is relatively simple , The author uses humorous analogy to explain the principle of blockchain 、 Application and development , From the perspective of easy to understand, it's really recommended , But many of the contents in the book are relatively simple , If the blockchain has not recognized the basic knowledge , Perhaps the author's humorous writing can only become a tool for his self entertainment . But if you read some theory books , This book could be its help .