The document classifies different types of geometry according to letter symbols and provides brief descriptions. It lists 27 types of geometry from A to T, including absolute geometry, affine geometry, analytic geometry, algebraic geometry, Archimedes geometry, and others. For each type, it gives a one-word title or branch of geometry studied and indicates whether it involves measurements. The document was prepared by Engineer Ahmed Rafique Aziz, a professor and researcher of geometry at Khulna University of Engineering & Technology in Bangladesh.