The 2000 Robert L. Nikirk Lecture. The first in a new series of Grolier Club publications documenting the annual Robert L. Nikirk Lectures in Bibliography. In this lecture, Christopher de Hamel (Donnelley Fellow Librarian at Corpus Christi College, Cambridge), himself a leading authority on medieval and illuminated manuscripts, traces Cockerell's influence on several generations of collectors, librarians and scholars. Designed by Jerry Kelly, and printed in an edition of 1000 copies.