CISCO® Networking Essentials
Troy McMillan
Penetration Testing: A Hands-On Introduction to Hacking
Georgia Weidman
The Web Application Hacker's Handbook: Finding and Exploiting ...
Dafydd Stuttard & Marcus Pinto
Social Engineering: The Art of Human Hacking
Christopher Hadnagy & Paul Wilson
The Linux Command Line
William E. Shotts Jr.
Perl Hacks: Tips & Tools for Programming, Debugging, and Surviving
Chromatic & Damian Conway & Curtis 'Ovid' Poe
Reversing: Secrets of Reverse Engineering
Eldad Eilam
Python Crash Course: A Hands-On, Project-Based Introduction ...
Eric Matthes
Wicked Cool Shell Scripts: 101 Scripts for Linux, Mac OS X, ...
dave taylor
The Artist's Guide to GIMP: Creative Techniques for Photographers, ...
Michael J. Hammel
Microsoft Windows Networking Essentials
Darril Gibson
Raspberry Pi Hacks: Tips & Tools for Making Things With the ...
Ruth Suehle & Tom Callaway
IRC Hacks
Paul Mutton
The Book of GIMP: A Complete Guide to Nearly Everything
olivier lecarme & Karine Delvare
The Linux Programming Interface: A Linux and Unix System Programming ...
michael kerrisk
The Book of Inkscape: The Definitive Guide to the Free Graphics ...
dmitry kirsanov
The Linux Command Line, 2nd Edition: A Complete Introduction
The TCP/IP Guide: A Comprehensive, Illustrated Internet Protocols ...
Charles Kozierok
Linux Firewalls: Attack Detection and Response
Michael Rash
How Linux Works: What Every Superuser Should Know
Brian Ward