Mastering pfSense, Second Edition
David Zientara
Mastering System Center 2012 R2 Configuration Manager
Santos Martinez & Peter Daalmans & Brett Bennett
GIS Succinctly
Peter Shaw
Mastering Kali Linux for Advanced Penetration Testing
Vijay Kumar Velu
Foundations of Scalable Systems
Ian Gorton
Learning Systems Thinking
Diana Montalion