This book provides a great overview of a number of computer intrusion incidents and links them throught not only the technical nature of the activity but the persons behind them. UNDERGROUND provides an excellent overview of intrustion activities focusing on the UK, Australia, and the United States. It covers the late 80's to the early nineties with stories on incidents such as the WANK Worm outbreak and 8lgm's activities. The stand out attribute of this book is that it examines what happened to the intruders after their activity rather than focusing on the activity itself. It also examines the interrelationships between intruders worldwide giving some insight into how the culture allows for several key persons to be involved in or have siginficant knowledge of many different activities. A must have to include in your library along with other staples such as Cuckoo's Egg, Masters of Deception, Fugitive Game, and Hacker Crackdown. However, like the other books noted, there are apt to be a few points that persons will take exception too with regard to accuracy.