The IDA Pro Book
Chris Eagle
The Linux Programming Interface
Michael Kerrisk
Land of Lisp
Conrad Barski M.D.
Art of R Programming
Norman Matloff
Webbots, Spiders, and Screen Scrapers
Michael Schrenk
The Book of Xen
Chris Takemura; Luke S. Crawford
Cisco Routers for the Desperate, 2nd Edition
Michael W. Lucas; Michael W. Lucas
Linux Firewalls
Michael Rash
Hacking: The Art of Exploitation, 2nd Edition
Jon Erickson
Practical Packet Analysis
Chris Sanders; Chris Sanders
Nagios: System and Network Monitoring, 2nd Edition
Wolfgang Barth; Wolfgang Barth
Learn You a Haskell for Great Good!
Miran Lipovaca
How Linux Works
Brian Ward