Ruby Under a Microscope: An Illustrated Guide to Ruby Internals
Pat Shaughnessy
Hacking VoIP: Protocols, Attacks, and Countermeasures
Himanshu Dwivedi
Test-Driven Infrastructure With Chef
Stephen Nelson-Smith
Software Networks
Guy Pujolle
Learning Proxmox VE
Rik Goldman
Enterprise IPv6 for Enterprise Networks
Ghazi Mokammel Hossain
Learning Bayesian Models With R
Dr. Hari M. Koduvely
Learning AWS
Aurobindo Sarkar & Amit Shah
Learning OpenStack Networking
James Denton