When I google around some latest Ubuntu OS, found a collection of Ubuntu eBook. For those who can read eBook and fans of Open Source, this series of Ubuntu eBook is a best collection for you.

Here the list of eBook

List of these ebooks:

Addison Wesley – Moving to Ubuntu Linux (2006)
Apress – Beginning Ubuntu Linux 3rd Edition (2008)
Apress – Beginning Ubuntu Linux 4th Edition (2009)
Apress – Beginning Ubuntu LTS Server Administration 2nd Edition (2008)
Apress – Beginning Ubuntu Server Administration, From Novice to Professional (2008)
Apress – Pro Ubuntu Server Administration (2009)
Apress – Ubuntu on a Dime, The Path to Low-Cost Computing (2009)
McGraw-Hill – How to Do Everything Ubuntu (2008)
McGraw-Hill – Ubuntu Server Administration (2008)
McGraw-Hill – Ubuntu, The Complete Reference (2008)
No Starch – Ubuntu for Non-Geeks 2nd Edition (2007)
No Starch – Ubuntu Linux for Non Geeks (2006)
O’Reilly – Learning Debian GNU Linux (1999)
O’Reilly – Ubuntu Hacks (2006)
O’Reilly – Ubuntu Hacks (2006)
Pragmatic – Ubuntu Kung Fu (2008)
Prentice Hall – A Practical Guide to Ubuntu Linux (2007)
Prentice Hall – The Official Ubuntu Book (2006)
Sams – Ubuntu 7.10 Linux Unleashed 3rd Edition (2008)
Sams – Ubuntu Unleashed 2008 Edition (2008)
The Ubuntu Packaging Guide

Thomson Course Technology – Introducing Ubuntu, Desktop Linux (2008)
Ubuntu Desktop Guide
Ubuntu Pocket Guide and Reference (2009)
Unofficial Ubuntu Starter Guide
Wiley – Hacking Ubuntu (2007)
Wiley – Ubuntu Linux Bible (2007)
Wiley – Ubuntu Linux For Dummies (2007)
Wiley – Ubuntu Linux Secrets (2009)
Wiley – Ubuntu Linux Toolbox, 1000+ Commands for Ubuntu and Debian Power Users (2008)

Download Ubuntu Ebook Collection:
hxxp://ho*tfile.com/dl/19291496/7542101/Ubuntu_ebook_collection.part1.rar.html
hxxp://hotfil*e.com/dl/19292673/243a760/Ubuntu_ebook_collection.part2.rar.html
hxxp://hot*file.com/dl/19292847/42ec0cc/Ubuntu_ebook_collection.part3.rar.html
hxxp://h*otfile.com/dl/19293117/d98b4b8/Ubuntu_ebook_collection.part4.rar.html