Ubuntu Pocket Guide and Reference is a free book written by Keir Thomas, the well-known author of Beginning Ubuntu Linux and co-author of Ubuntu Kung Fu, two popular books about Ubuntu Linux. His latest book is called Ubuntu Pocket Guide and Reference and it is available as a free PDF download from the official website, or as print edition from Amazon.com for USD 11,99.

Available immediately, Ubuntu Pocket Guide and Reference (ISBN: 978-1440478291) is a uniquely compact guide to the world's favorite Linux. Written by award-winning Ubuntu author Keir Thomas, the book is available from Amazon.com for $9.94 (USD) and, in a ground-breaking move, as a free-of-charge PDF Edition that can be downloaded from http://www.ubuntupocketguide.com.

In the midst of the current financial crunch, the popular, free Linux distribution Ubuntu has never looked more attractive. If you've considered switching, a free copy of the Ubuntu Pocket Guide is the perfect place to start.

Keir Thomas informs us that his new Ubuntu book has been downloaded 150,000 times. Freely downloadable in PDF format and available from Amazon in paperback form for $10, MacFreda Publishing's 164-page Ubuntu Pocket Guide and Reference offers a beginner's overview of the popular distro.

Here are 4 Linux books which are ideal for a beginner:

1. A Newbie’s Initiation To Linux – Download (1.90MB)
2. Introduction to Linux – A hands on guide – Download (1.52MB)
3. Ubuntu Pocket Guide and Reference – Download (2.13MB)
4. GNU/Linux Command−Line Tools Summary – Download (682.45KB)

Ramesh Natarajan is giving out free copies of his ebook, Linux 101 Hacks. Though it targets a more experienced audience than the Ubuntu Pocket Guide and Reference download Sam covered last month, it looks like a handy reference.

This guide is designed to be as user-friendly and easy to follow as > possible, it should provide the first point of reference to any Ubuntu newcomer with lots of information. The manual has step by step instructions and includes lots of screenshots to show you how to do  tasks. It also includes a Troubleshooting section to help you solve  common Ubuntu problems quickly.

When Ubuntu Pocket Guide and Reference went on sale in January, I created a Web site to redistribute the free edition and act as a central information source for the book. And because the book was about Ubuntu, I made ample mention of the word "Ubuntu" and also used the familiar three-part circle logo.

The Ubuntu Karmic Koala Bible is a guide that's both great for Linux initiates, and invariably useful for Linux intermediates. With over fifty pages of copy-paste tutorials, this guide belongs in the virtual library of every Linux user.