Learning Modern Linux
Michael Hausenblas
Building Secure and Reliable Systems
Betsy Beyer & Heather Adkins & Paul Blankinship & Piotr Lewandowski & Ana Oprea & and Adam Stubblefield
Cisco Networking Essentials
Troy McMillan
Flow Architectures
James Urquhart
Learn You a Haskell for Great Good!
Miran Lipovaca