Perl
Ellie Quigley
Rapid GUI Programming With Python and Qt
Mark Summerfield
Core Python Programming
Wesley J. Chun
Oracle PL/SQL by Example
Benjamin Rosenzweig & Elena Silvestrova
UNIX Systems Programming: Communication, Concurrency and Threads
Kay A. Robbins & Steven Robbins
Oracle DBA Guide to Data Warehousing and Star Schemas
Bert Scalzo
Interprocess Communications in Linux
John Shapley Gray
UNIX Shells by Example
Linux Desk Reference
Scott Hawkins
LINUX Assembly Language Programming
Bob Neveln
Practical Programming in Tcl and Tk
Brent B. Welch