MongoDB Basics
David Hows & Peter Membrey & Eelco Plugge
Prelude to Foundation
Isaac Asimov
Foundation (6)
The Illustrated Network: How TCP/IP Works in a Modern Network
Walter Goralski
Ethernet: The Definitive Guide
Charles E. Spurgeon & Joann Zimmerman
The Book of PF: A No-Nonsense Guide to the OpenBSD Firewall
Peter N. M. Hansteen
Absolute FreeBSD: The Complete Guide to FreeBSD, 2nd Edition
Michael W. Lucas