The prologue of the book says:
Instructions in the book are for numerous spells and recipes involving carrots. Recipes include things like ``Carrot Soup'' and ``Carrot Fudge'' (not very interesting, rather disgusting). Carrot spells include ``Carrot Illusion'', ``Carrot Dart'' and ``The Living Carrot''. Attempting to read one of these spells however gives you a headache. Perhaps you are not a high enough level magician.
A carrot is a carrot and not an ape.
A carrot can be used for anything, except rape.