Paul Britton - long engaged in the clinical research of psychology and the real evidence work of criminal psychology, has an almost mythical status in the crime detection field. The Jigsaw Man was his first-hand narration for some shocking cases he presided over in the past, which also makes this book become a groundbreaking writing on psychological analysis of criminals and judgment reference of criminal cases.

This is an official user manuals collection for all tools under Kali Linux,  All documents were copied from the official site remaining all the same (color screenshots and original code format).

Hacker's Delight is a computer science masterpiece written by Henry S. Warren in 2002. It is the only book that explains the computer algorithm on the market. By contrast, other algorithms related books basically are all about mathematical algorithms. Of course, the mathematical algorithm also mainly serves the computer science, but basically, it doesn't care about the details of computer architectures.

More and more critical applications have been migrated to websites now. Meanwhile, the security of these apps have become a major challenge to all kinds of institutions. Know yourself as well as the enemy, so that you can fight a hundred battles with no danger of defeat. Similarly, only by understanding the exploitable vulnerabilities exist in web applications and the attack methods adopted by web attackers, we can more effectively ensure the safety of our web apps.

The Ultra Wide Band (UWB, ultraband) is a new wireless communication technology with great potential for growth that developed in the 1990s, it was listed as one of the ten communication technologies in the future. Compared with traditional cutoff frequency (corner/break frequency) communication systems, it came up with many obvious characteristics (very wide bandwidth, high speed of data transmission, low power consumption, high safety performance, and so on).