Leonard S. Riggio (born February 28, 1941) is an American businessman and entrepreneur. He serves as executive chairman of book store chain Barnes & Noble and has been its largest shareholder since purchasing the company in 1971. Under his leadership the company expanded significantly from a single retail location on 105 Fifth Avenue, New York to a nationwide chain with 600+ stores.Born in New York City, Riggio attended Brooklyn Technical High School, graduating in 1958, followed by evening classes at New York University. Wikipedia