This work records the accomplishments of the leaders of library science with 51 thoroughly researched biographies of individuals whose contributions have profoundly influenced the profession's history. The biographical sketches, ranging in length from 1,400 to 4,000 words, were researched, written, and reviewed by noted authorities in the library and information science community.

...a leaping departure in comprehensiveness, organizational format, and accessibility through indexing...A magnificent contribution to the study of American library history. --LIBRARIES & CULTURE ...a work of enormous and painstaking scholarship. --LIBRARY ASSOCIATION RECORD (UK)