Aaron is the founder of Fascination St Fine Art, an award-winning gallery that was established in 1991 and showcases a variety contemporary art. He is also the author of several books: "The Garage Sale Millionaire", a guide to finding and selling valuable items, and "A Boy Named Penguin", a children's book series inspired by his son who has Autism. He has been a columnist for The Denver Post, a host on National PBS for 8 years, and various media outlets as an expert on art collecting, valuation, and authentication. Aaron has helped many national and international clients on purchasing art collections and also served as an expert witness for insurance companies, divorce attorneys and the FBI.