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 animal on the cover of RADIUS is a Dolium shell. This shell is that of Orcula Dolium, one of a small family of snails. Dolium live in leaf litter or on mossy rocks on mountains such as the Alps and the Carpathians. Their shells are cylindrical, and they have rounded mouths and teeth. Their color varies from yellowish to reddish brown.

Darren Kelly was the production editor and Maureen Dempsey was the copyeditor for RADIUS. Octal Publishing, Inc. provided production services and wrote the index. Sheryl Avruch and Claire Cloutier provided quality control. Interior composition was done by Philip Dangler and Derek Di Matteo.

Hanna Dyer designed the cover of this book, based on a series design by Edie Freedman. The cover image is a 19th-century engraving from the Dover Pictorial Archive. Emma Colby produced the cover layout with QuarkXPress 4.1 using Adobe's ITC Garamond font.

David Futato designed the interior layout. This book was converted 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 Myriad 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. The tip and warning icons were drawn by Christopher Bing. This colophon was written by Linley Dolby.

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