Operating Systems - Linux

The Cathedral and the Bazaar: Musings on Linux and Open Source by an Accidental Revolutionary (O'Reilly Linux)

Eric S. Raymond

Linux: the complete reference

Richard Petersen.

Running Linux

Matthias Kalle Dalheimer and Matt Welsh.

Linux device drivers: Where the Kernel Meets the Hardware

Alessandro Rubini, Jonathan Corbet, Greg Kroah-Hartman

Linux for dummies

by Dee-Ann LeBlanc and Richard Blum.

Caldera OpenLinux System Administration Unleashed (Unleashed)

Aaron Crane, Jay Fink, Ivan McDonaugh, Neil Brown, Robert Haig, Thomas Schenk, Tom Addelstein, Elliot Turner, Ido Dubrawsky, Jaron Rubenstein, Raphael Mankin

Understanding the Linux kernel

Daniel P. Bovet and Marco Cesati.

Just for fun: the story of an accidental revolutionary

Linus Torvalds and David Diamond.

How Linux works: what every superuser should know

by Brian Ward.

Linux network administrator's guide

Olaf Kirch & Terry Dawson.