# Self-updating curriculum > The PhotoRobot Academy principle that modules link to the product manuals instead of copying them. Category: Training and certification. A self-updating curriculum references the canonical product documentation instead of duplicating it, so training stays current when the product changes. The training never contradicts the current manual. ## How PhotoRobot uses it PhotoRobot Academy modules link to the [manuals](https://www.photorobot.com/manuals) on photorobot.com. When a feature changes, the manual is updated and students always read current information; module authors never copy text from the manuals. ## Related terms - [PhotoRobot Academy](https://www.photorobot.com/glossary/photorobot-academy): PhotoRobot's official training and certification program for operators, managers and integrators. - [Academy module](https://www.photorobot.com/glossary/academy-module): The basic unit of the PhotoRobot Academy curriculum: one topic in 30 to 90 minutes.