The official rules of tennis can be found on the International Tennis Federation (ITF) website at the following link:
http://www.itftennis.com/technical/publications/rules/overview.aspx
Below are some important tennis etiquette documents. Please familiarise yourself with them.
Tennis etiquette and rules for non umpired matches
Rules for correcting errors during a match
All of these documents are in Adobe PDF format. If you are unable to access the documents, please download Adobe Reader by clicking here