If your looking for an easy Christmas gift to get your geeky friend or spouse, take a look at the following 10 Linux books that I think every Linux enthusiast should own.
- A Practical Guide to Linux Commands, Editors, and Shell Programming
- Linux Administration Handbook (2nd Edition)
- Understanding the Linux Kernel
- Essential System Administration, Third Edition
- Linux Bible, 2005 Edition
- Linux in a Nutshell
- Understanding Linux Network Internals
- Optimizing Linux Performance: A Hands-On Guide to Linux Performance Tools
- Linux Application Development (2nd Edition)
- Troubleshooting Linux Firewalls
These Linux Books have helped me in my understanding of the operating system, I hope they help you too.
Merry reading, shopping, and Christmas!