About 600 BC, Aesop, a Greek slave made a collection of stories, or fables which have remained popular until today. "The Wolf in Sheep's Clothing" is one of six stories that appear in this collection and like all of Aesop's fables it has a moral which offers the reader helpful advice which is summed up at the end in a proverb. Other fables in this book include: "The Frogs Who Wanted a King", "The Bundle of Sticks", "Hungry But Free", "Coyote and the Goat" and "The Fox and the Stork".