Shell Scripting
Steve Parker
Mastering Linux Kernel Development: A Kernel Developer's Reference ...
Raghu Bharadwaj
The Design and Implementation of the FreeBSD Operating System
Marshall Kirk McKusick & George V. Neville-Neil & Robert N. M. Watson
PMP® Exam Practice Test and Study Guide, Ninth Edition
J. Leroy Ward, Pmp, Pgmp & Ginger Levin
No Place to Hide: Edward Snowden, the NSA and the Surveillance ...
Glenn Greenwald