Big Nerd Ranch has announced the release of “Core Mac OS X and Unix Programming,” co-authored by Mark Dalrymple and Aaron Hillegass. Previously available only as a student guide for the Big Nerd Ranch class by the same name, the new 541-page book shows programmers the underpinnings of Mac OS X and covers the same topics as those in the US$3,500 training class. The book is priced at $97.95.