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 Mac OS in a Nutshell: A Power User's Quick Reference> is a chimpanzee, a mammal that lives in the tropical forests of Africa. Chimpanzees and humans share taxonomic classification-both belong to the same family, Hominidae. More specifically, the chimpanzee is classified as Pan troglodytes. Biologically, chimpanzees are more than 98 percent genetically identical to humans. Chimpanzees grow to the size of adolescent humans and reach sexual maturity between the ages of six and ten. Their gestation period is the same as that of humans, and they give birth most often to single offspring, sometimes twins, with whom they form lifelong bonds. They live up to 40 years in the wild and 55 years in captivity. Chimpanzees share numerous sociological and behavioral traits with humans. In the wild, they live in small communities and spend their days gathering food, playing, grooming, and resting. Chimpanzees are omnivores-they eat both meat and vegetables-but the main staple of their diet is fruit that grows in abundance in their habitat. Additionally, chimpanzees use tools (they are the only animals besides humans to do so). They use sticks to get ants and termites out of dirt mounds, and leaves to clean their bodies and to absorb water from holes in trees for consumption. Claire Cloutier and Catherine Morris were the production editors, and Mark Nigara was the copyeditor for Mac OS in a Nutshell. Catherine Morris was the proofreader. Ann Schirmer, Maureen Dempsey, and Claire Cloutier provided quality control. Judy Hoer wrote the index. Interior composition was done by Catherine Morris. Edie Freedman designed the cover of this book. The cover image is a 19th-century engraving from the Dover Pictorial Archive. Emma Colby produced the cover layout with QuarkXPress 3.32 using Adobe's ITC Garamond font. Alicia Cech and David Futato designed the interior layout based on a series design by Nancy Priest. Mike Sierra, David Futato, and Alicia Cech prepared the text using FrameMaker 5.5.6 and Quark XPress 4.1. The text and heading fonts are ITC Garamond Light and Garamond Book. The illustrations that appear in the book were produced by Robert Romano and Rhon Porter using Macromedia FreeHand 8 and Adobe Photoshop 5. This colophon was written by Sarah Jane Shangraw. Whenever possible, our books use RepKover, a durable and flexible lay-flat binding. If the page count exceeds RepKover's limit, perfect binding is used.