Michael D. Hayeshas been flying for more than 30 years and has accumulated numerous certificates and ratings, including private and commercial single- and multiengine land ratings. He is currently a certified flight instructor (instrument) and is the author of several books in the Oral Exam Guides series, includingAirline Transport Pilot Oral Exam Guide,Instrument Oral Exam Guide, andPrivate Oral Exam Guide. He lives in Fort Worth, Texas.