Joseph Campbell was an American mythologist, writer, and lecturer, best known for his work in comparative mythology and religion. He gained fame for his concept of the "monomyth," or the hero's journey, which outlines a common narrative pattern found in many cultures' myths and stories. His influential book, The Hero with a Thousand Faces, explores this idea and has inspired countless writers and filmmakers. Campbell's ideas have had a significant impact on various fields, including literature, psychology, and film. He collaborated with George Lucas on the Star Wars saga, which incorporates elements of the hero's journey. His work continues to resonate, encouraging people to explore the deeper meanings behind myths and stories across cultures.