Practical Ansible
Vincent Sesto
Kubernetes: Up and Running
Kelsey Hightower & Brendan Burns & Joe Beda & Lachlan Evenson
tmux (for Diego Cohen)
Brian P. Hogan
GitHub For Dummies
Sarah Guthals & Phil Haack
Linux Advanced Routing and Traffic Control HOWTO
Gregory Maxwell & Remco Mook & Martijn Oosterhout & Paul Schroeder & Jasper Spaans & Bert Hubert