Mary Ann Zapalac has been specializing in art for instructional media  for over twenty years.

Before launching her own business in 1993, she earned a master's degree in medical illustration from the University of Texas Southwestern Medical Center at Dallas. After working for several years at the same institution as as a staff medical illustrator, Mary Ann sought to expand her horizons at an educational
software company where she created art and animations for K-3 reading curriculum software.

Her work continues with publishers and professionals in the healing arts, children's education, labor, environmental and occupational health, cognitive and developmental testing, and the natural sciences.

Clients have included Krames Patient Education, The American Heart Association, The Center for Disease Control, The AFL-CIO, UC Berkeley, UC Davis, Riverside Publishing Company, LLewellyn Worldwide LTD., The Acupressure Institute at Berkeley, The Hesperian Foundation, Intellitools Software, Broderbund Software, Ideal Learning, Josten's Learning, Sanctuary Woods, Solis Inc., Dominie Press, Knowledge Adventure, Options Inc., Dawson Duncan Communications, Carehub.com, U.S. Dentek, Harcourt Brace College Publishers, Villard Press, Pockets Magazine,Integrated Media Communications, The Forward, Morphonix, Communication Strategies Inc. and the Lakeview Mural Project.