↑ Elster, Charles; Simons, Herbert (1985), "How important are illustrations in children's readers?", The Reading Teacher, International Reading Association, 39 (2), pp. 148–152 ↑ "What does it mean to be an illustrator?". graphicdesign.stackexchange.com. Retrieved 2016-03-08. ↑ "Part One: The Instructional Role of Illustrations". ucar.edu. ↑ "The first recorded cartoon illustration and animation".