This brief summary of “schema” aims to help novices better appreciate what a schema is, how it is used, and why it is important for theories of truth. The summary should not be interpreted as replacing original work on “schema;” rather, it is meant to serve as a supplement for students who are unfamiliar with schema in philosophy or mathematics. For a more detailed account, I encourage interested readers to read Corcoran (2006) and Corcoran and Hamid (2016).