C+******************

This book is very practical! Not only is the content comprehensive, covering knowledge about operating systems, network applications, etc., It also introduces in detail the development of malicious programs and other tools. I feel like it is like a technical dictionary that I can refer to at any time when I encounter a problem. Moreover, the author Ji Yun has unique insights into security programming, which is of great benefit to people. I believe this book will be of great help to people who want to learn hacker knowledge.