IRobot Roomba manuals are available on the iRobot website in the Product Resources section. Go to IRobot.com, and click Support under the For The Home heading. On the Support page, click the IRobot Owner's Manuals and Quick Start Guides link. Select the desired Roomba series for a list of manuals.
The iRobot website also offers instructional videos, quick-start guides and accessories for the Roomba vacuum cleaner. An accessory called the Virtual Wall Lighthouse contains the Roomba in one room until it is completely clean and then directs it to the next room. It also keeps the Roomba out of designated off-limits areas.