Elizabeth O'Black Gans, LIbby to most, holds a BS in geology from U.C. Santa Barbara, where she was introduced to plenty of great southern California geology, as well as to the art of map making. Shortly after graduation, Libby started Gans Illustrations and began working on maps and scientific illustrations for publication, eventually becoming the first digital arts of the Dibblee Geological Foundation. (from the back page of her book "Roadside Geology of Southern California" Mountain Press Publishing.)