Transfiguration can be done to most (if not all) objects and as with most forms of magic it includes - but hardly limited to - Transfiguration spells, which comprise the one of the seven known spell types. Learn it all here.
In the class, students learn about a wide range of magical creatures, from flobberworms to Fire crabs, and even unicorns and thestrals. Students are taught about feeding, maintaining, breeding, and proper treatment of these various creatures.