Subversion is an open source version control system that is highly used by corporate and the open source communities such as wordpress, drupal, joomla just to name a few. It was started to complement the inefficiencies of CVS (another popular open source version control system) and had since gain a fair amount of adopters. The system is fairly easy to use and understand and there’s also free documentation available for download.
Where to download?
Download the PDF edition of the book (1.3MB) here
Download the single-page HTML edition of the book in a .tar.bz2 archive (~350KB) here
Download the multiple-page HTML edition of the book in a .tar.bz2 archive (~350KB) here
Chapter 1: Fundamentals Concepts will be a good read if you are totally new to version control system. Start from the basics and progress to more advance when it’s necessary. I’ve since started to use Subversion and TortoiseSVN (Subversion Client) to manage my coding and development work on my local machine as to keep track of my own work.