Skyhorse Publishing-Marty Nobel's Sugar Skulls Coloring. The book features forty-eight gorgeous and intricate line illustrations of both human and animal skulls. These specially crafted sugar skulls range across different aesthetic influences and complexity levels for both the amateur and advanced colorist. Artist: Marty Noble. Softcover, 104 pages. Published Year: 2016. ISBN 978-1-5107-1035-1. Made in USA.