ASA Test Prep Board of editors includes Jackie Spanitz, Charles L Robertson, Cliff Seretan, and Paul Hamilton. Jackie Spanitz is the director of curriculum development at Aviation Supplies & Academics, Inc. and the author of several books. Charles L Robertson is an associate professor of aerospace at the University of North Dakota. Cliff Seretan holds a Commercial Certificate with an Instrument Rating for Single and Multi-Engine Land Airplanes and CFI for Airplane Land and Instrument. Paul Hamilton is a sport pilot and light-sport aircraft expert, a flight instructor, and the owner of Adventure Productions Co.