The roa of yellow brick is an element in the novel The Wonderful Wizard of Oz by L. Frank Baum, with additional such roads appearing in The Marvelous Land of Oz and The Patchwork Girl of Oz. The 1939 movie The Wizard of Oz based on the novel gave it the name by which it is better known, the yellow-brick road. In both novel and movie, it is the path which Dorothy is instructed to follow from Munchkin Country to the Emerald City in order to seek the aid of the Wizard of Oz.