Linux & BSD

The Complete Guide to FreeBSD

Unix for the Practical Paranoid

A Tale of Software, Skateboards, and Raspberry Ice Cream

Creative Techniques for Photographers, Artists, and Designers

A Practitioner's Guide to GNU Autoconf, Automake, and Libtool

A Hands-On Guide to Modeling, Sculpting, Materials, and Rendering

Record, Edit, Mix, and Master with the Free Audio Editor

A Complete Guide to Nearly Everything

A No-Nonsense Guide to the OpenBSD Firewall

An Introduction to Kernel Hacking

A Guide for the Intrepid

What Every Superuser Should Know

Getting Started with Networking, Scripting, and Security in Kali

Attack Detection and Response with iptables, psad, and fwsnort

A Linux and UNIX System Programming Handbook

A Guide for Digital Investigators

From Strings to Turing Machines

The Definitive Guide to the Graphics Editor

A Complete Introduction

101 Scripts for Linux, OS X, and UNIX Systems