Here are some other books you can read to help you understand the hacker mindset.
[Shea-ampersand-Wilson] The Illuminatus! Trilogy. DTP. ISBN 0440539811.
(Originally in three volumes: The Eye in the Pyramid, The Golden Apple, and Leviathan).
This work of alleged fiction is an incredible berserko-surrealist rollercoaster of world-girdling conspiracies, intelligent dolphins, the fall of Atlantis, who really killed JFK, sex, drugs, rock'n'roll, and the Cosmic Giggle Factor. First published in three volumes, but there is now a one-volume trade paperback, carried by most chain bookstores under SF. The perfect right-brain companion to Hofstadter's Göodel, Escher, Bach. See Eris, Discordianism, random numbers, Church of the SubGenius.
[Adams] The Hitchhiker's Guide to the Galaxy. Pocket Books. Copyright © 1981. ISBN 0-671-46149-4.
This ‘Monty Python in Space’ spoof of SF genre traditions has been popular among hackers ever since the original British radio show. Read it if only to learn about Vogons (see bogon) and the significance of the number 42 (see random numbers) — and why the winningest chess program of 1990 was called ‘Deep Thought’.
[Jennings] The Devouring Fungus: Tales from the Computer Age. Norton. Copyright © 1990. ISBN 0-393-30732-8.
The author of this pioneering compendium knits together a great deal of computer- and hacker-related folklore with good writing and a few well-chosen cartoons. She has a keen eye for the human aspects of the lore and is very good at illuminating the psychology and evolution of hackerdom. Unfortunately, a number of small errors and awkwardnesses suggest that she didn't have the final manuscript checked over by a native speaker; the glossary in the back is particularly embarrassing, and at least one classic tale (the Magic Switch story, retold here under A Story About Magic in Appendix A) is given in incomplete and badly mangled form. Nevertheless, this book is a win overall and can be enjoyed by hacker and non-hacker alike.
[Markoff-ampersand-Hafner] Cyberpunk: Outlaws and Hackers on the Computer Frontier. Simon & Schuster. Copyright © 1991. ISBN 0-671-68322-5.
This book gathers narratives about the careers of three notorious crackers into a clear-eyed but sympathetic portrait of hackerdom's dark side. The principals are Kevin Mitnick, “Pengo” and “Hagbard” of the Chaos Computer Club, and Robert T. Morris (see RTM, sense 2). Markoff and Hafner focus as much on their psychologies and motivations as on the details of their exploits, but don't slight the latter. The result is a balanced and fascinating account, particularly useful when read immediately before or after Cliff Stoll's The Cuckoo's Egg. It is especially instructive to compare RTM, a true hacker who blundered, with the sociopathic phone-freak Mitnick and the alienated, drug-addled crackers who made the Chaos Club notorious. The gulf between wizard and wannabee has seldom been made more obvious.