What is the setting of The Light Fantastic by Terry Pratchett?

All of the action takes place upon the Discworld. The world is literally a disc and sits on four elephants. The elephants stand upon a giant turtle called the Great A'tuin. In the world, magic and heroism are prevalent, much like the world of a fairy tale. Here wizards, trolls, heroes, drawfs, witches and other mythological entities all share adventures.