Charles Buckles Falls (1874–1960), commonly known as C.B. Falls, was an American artist, illustrator, and writer. He worked across book illustration, graphic design, posters, and lettering, and was associated with the Decorative Designers, a New York design organization. Falls both wrote and illustrated books, including The ABC Book, which helped establish his reputation for picture books and distinctive display lettering. During World War I, Falls designed widely circulated public information posters, among them Books Wanted, encouraging support for wartime libraries.