"But it is his skill as a historian as well as a printer that endears his name to the student of typography. His four volumes on the practice of typography are considered classics. In an age when few American scholars were examining early printed books, he made significant scholarly contributions to the study of incunables. When the Grolier Club was founded in 1884, it was not surprising that, as New York's most illustrious printer, he was asked to be one of the founding members and to provide much the Club's early printing."--BOOK JACKET.