Militades's Elementary Transformations is a textbook written by Militades concerning then subject of Transfiguration. The book outlines the four most basic forms of transfiguring: Inanimate-to-inanimate: e.g. a match to a needle Inanimate-to-animate: e.g. a rock to a bird Animate-to-inanimate: e.g. a mouse to a teacup Animate-to-animate: e.g. a bird to a mouse The book is used in Professor Hobbes' Transfiguration class at the Charmbridge Academy.