James Mosley (1935–2025) was Librarian of the St Bride Printing Library (London) from 1958 to 2000. He taught in the Department of Typography at the University of Reading, and at courses in Lyons, Charlottesville, and elsewhere. He was a founding member of the Printing Historical Society and the first editor of its Journal. The author of many essays, reviews, and monographs on printing and typographic history, he published some notable articles in Typography papers. He also wrote online at Typefoundry.