Our look is the result of reader comments, our own experimentation, and feedback from distribution channels. Distinctive covers complement our distinctive approach to technical topics, breathing personality and life into potentially dry subjects.

The image on the cover of Network Security Hacks is barbed wire. The type of barbed wire pictured in the cover image was patented by Joseph Glidden in 1874. Glidden improved on earlier attempts at manufacturing wire fencing by fashioning sharp barbs, spacing them along a smooth wire, and then twisting another wire around the first to hold the barbs in place. Advertised as "Cheaper than dirt and stronger than steel," barbed wire was immediately adopted by farmers in the American west as a way to control their herds. The days of free-roaming cattle and cowboys were soon numbered, but battles over barbs were fought both in court and on the ranch. Opponents called barbed wire "the Devil's rope," and the Cole Porter song "Don't Fence Me In" mourned this change in the western landscape. Barbed wire was here to stay, though--in addition to agricultural use, it has become a ubiquitous component of warfare and is a common feature of high-security areas such as prisons.

Genevieve d'Entremont was the production editor and copyeditor for Network Security Hacks . Brian Sawyer proofread the book. Philip Dangler and Claire Cloutier provided quality control. Jamie Peppard provided production support. Ellen Troutman-Zaig wrote the index. Rob Flickenger wrote the Preface.

Hanna Dyer designed the cover of this book, based on a series design by Edie Freedman. The cover image is a photograph from . Emma Colby produced the cover layout with QuarkXPress 4.1 using Adobe's Helvetica Neue and ITC Garamond fonts.

Melanie Wang designed the interior layout, based on a series design by David Futato. This book was converted by Andrew Savikas to FrameMaker 5.5.6 with a format conversion tool created by Erik Ray, Jason McIntosh, Neil Walls, and Mike Sierra that uses Perl and XML technologies. The text font is Linotype Birka; the heading font is Adobe Helvetica Neue Condensed; and the code font is LucasFont's TheSans Mono Condensed. The illustrations that appear in the book were produced by Robert Romano and Jessamyn Read using Macromedia FreeHand 9 and Adobe Photoshop 6. This colophon was written by Philip Dangler.

The online edition of this book was created by the Safari production group (John Chodacki, Becki Maisch, and Ellie Cutler) using a set of Frame-to-XML conversion and cleanup tools written and maintained by Erik Ray, Benn Salter, John Chodacki, Ellie Cutler, and Jeff Liggett.