Software Architecture: The Hard Parts
Mark Richards & Neal Ford & Pramod Sadalage & and Zhamak Dehghani
F# Succinctly
Robert Pickering
Mastering Hyper-V 2012 R2 with System Center and Windows Azure
John Savill
Clojure for the Brave and True
Daniel Higginbotham
AWS System Administration
Mike Ryan & Federico Lucifredi