Rating: 

This is a fascinating book full of beautiful tricks. These tricks can help many people save a lot of time, and frustrations, including ordinary users, system admins, to security practitioners. This is definitely a book full of treasures - something for everybody.
I am looking from a security practitioner's point of view: how Knoppix can help in network security, such as using Knoppix to help investigate a compromised machine, defending the host with the use of network vulnerability scanner, to collecting evidences for system forensics, to name a few. They are indeed very useful tips. Just these topics alone, I think the book has paid back on the investment.

In addition to the above mentioned topics, the book goes into detail on how to save a Linux system, how to rescue a Windows machine such as recovering lost passwords. This is indeed truly a wonderful Swiss Army Knife. With all the handy cheat codes, the author has done an excellent job with lots of examples and explanations. No wonder, Knoppix is a popular choices for many, including hackers and security professionals alike. Knoppix is truly a lifeline for many.
Kyle did an excellent job!