Electronics for Beginners
Jonathan Bartlett
Building Secure and Reliable Systems
Heather Adkins & Betsy Beyer & Paul Blankinship & Piotr Lewandowski & Ana Oprea & Adam Stubblefield
Absolute FreeBSD
Michael Warren Lucas
The Complete Metasploit Guide
Sagar Rahalkar
The Cybersecurity Self-Help Guide
ARUN. SONI