OpenStack Operations Guide
Tom Fifield & Lorin Hochstein & Jonathan Proulx & Everett Toews & Diane Fleming & Joe Topjian & Anne Gentle
Linux System Programming: Talking Directly to the Kernel and ...
Robert Love
High Performance Browser Networking: What Every Web Developer ...
Ilya Grigorik
Proxmox High Availability
Simon M. C. Cheng
So long, and thanks for all the fish
Douglas Adams
The Hitchhiker's Guide to the Galaxy (4)
Mostly Harmless
The Hitchhiker's Guide to the Galaxy (5)