A whirlwind tour of the QGIS Graphical Modeler, a tool that provides powerful visual programming functionality for spatial data processing pipelines and workflow design. The session will start off with describing what it is and how to use it, before digging into some of the elements and architecture in the surrounding ecosystem. By the conclusion of the session, all participants should have an idea on how to create their own models, as well as source community developed models and integrate them into their projects.