 From 1993 in Barcelona to 1997 in Copenhagen, he presided over IFLA conferences that attracted record-breaking attendance to its programs and exhibits.Currently, he serves as a member of the National Commission on Adult Literacy, he is a life member of the American Library Association, a life member of the National Association for the Advancement of Colored People (NAACP), a member of the Board of Trustees of Wabash College, the Board of Trustees of the Newberry Library and a member of the Grolier Society.Previously he has served on many boards and advisory committees including advisory committees to the Princeton, Miami, Stanford and Harvard University Libraries.