In the 1930s, Wootton was commissioned by Edward Saunders to do art and book illustrations. In this time he wrote several books on art instruction, one of which, How to Draw Aircraft, went on to be a best-seller, In 1939, he volunteered for the Royal Air Force but instead was invited by the commander-in-chief of the Allied Air Forces to accept a special duty commission as war artist to the R.A.F. and Royal Canadian Air Force. He painted RAF subjects from England to France and Belgium before travelling to Southeast Asia at the end of World War II. Since the war Frank Wootton renewed his interest in Landscape painting and paintings of Equestrian subjects and has exhibited at the Royal Academy of ROI and many other galleries.