Don Libes and Sandy Ressler
Prentice-Hall, 1989
ISBN 0-13-536657-7

The authors of this book set out to tell you all the things about UNIX that tutorials and technical books won't. The result is gossipy, funny, opinionated, downright weird in spots, and invaluable. Along the way they expose you to enough of UNIX's history, folklore and humor to qualify as a first-class source for these things. Because so much of today's hackerdom is involved with UNIX, this in turn illuminates many of its in-jokes and preoccupations.