I enjoyed this book. I was very much looking forward to it after reading The Art of Deception. This book follows the same format, with 11 chapters detailing a number of hackers/security consultants experiences breaking into systems in various ways. Unlike the Art of Deception which concentrated purely on social engineering techniques, this book (barring one chapter on social engineering) is largely more technical, detailing hack attacks from information gathering stage through to the hack itself and reporting (if this is done!). A couple of chapters do require technical knowledge, as whilst Mitnick describes a few technical terms, this certainly isn't done comprehensively to allow a novice to fully understand what is going on. As one other reviewer said, Mitnick does intersperse all the 'stories' with experiences from his own life, and whilst this could be construed as egotistical, I found it refreshing and often very funny. Each chapter also details how firms can protect against each attack mentioned, which is very useful, and makes this more than just another hacker culture reference.