John Cornacchio graduated from Pratt Art Institute and attended Mass College of Art. He has taken workshops with Edger A. Whitney, Paul Rahilly, Constance Flavell Pratt, Marshall Joyce, William Bartlet, and Sergio Roffo.

John was the illustrator for Disney Children's cards and novelty books. He was the Art Director for Rustcraft Greetings Inc. and Westwood Art Gallery. He is currently a Director for the Front Street Art Gallery in Scituate, Ma.