Sometimes when you are creating a piece of content, the title field does not make sense to be filled out by the user. In these cases, its best to hide it and have it filled in automatically. Depending on your needs, the Auto Nodetitle may be able to give you everything you need.
After enabling the module, navigate back to basic editing of the content type you wish to configure, or add a new one. You will see a new option for "automatic title generation" with three options: