The Hero's Journey is a narrative framework identified by mythologist Joseph Campbell in his book, "The Hero with a Thousand Faces." It outlines a common pattern found in many myths and stories, where a hero embarks on an adventure, faces challenges, and ultimately returns transformed. This journey typically includes stages such as the call to adventure, crossing the threshold, and the return home. This structure can be seen in various stories, from ancient myths to modern films. Examples include Luke Skywalker in Star Wars and Frodo Baggins in The Lord of the Rings, both of whom undergo significant personal growth through their adventures.