First of all, you have to decide that the version control is necessary for your work? If you wish to collaborate with some people on same document or project? Then, you are in a need to have version control system to keep track of who made changes and where the changes have done.
For this purpose, many version control system tools are available when you are working on a development team. Subversion is a free version control system that manages files and directories and the changes made to them over time.
Whenever you are using subversion tool, everyone in your team can commit changes in a central place. This will helps the people in a team or group to always be up to date without any struggle. You may use it to access a repository over an internet connection and to collaborate with others.