The animal on the cover of Programming Perl, Fourth Edition is a dromedary (one-hump camel). Camels are large ruminant mammals, weighing between 1,000 and 1,600 pounds and standing six to seven feet tall at the shoulders. They are well known for their use as draft and saddle animals in the desert regions, especially of Africa and Asia. Camels can go for days without water. If food is scarce, they will eat anything, even their owner’s tent. Camels live up to 50 years.

Edie Freedman designed the cover of this book using 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.