Illustrated Reference Books: Technological, Intellectual and Economic Developments

At one time, reference librarians considered a good illustrated reference book to be one in which the plates were bound near the text they illustrated, rather than all together at the back of the volume. Now there is an increasing number of reference books with high quality illustrations on almost every page, including works that have been designed around their graphic content. This article explores technological, intellectual, and economic developments that have contributed to this situation. Using recently published reference works as examples, the article argues that these developments have produced dramatic changes in the relationship between the text and illustrations in reference books, as well as important changes in the relationships between the informational content of reference works and the functions of book authorship and publishing. Criteria currently used for the evaluation of reference books, based as they are on characteristics of verbal or text material and on the assumption of traditional relationships among authors, publishers, and the content of reference volumes, are not sufficient for the selection and use of today's heavily illustrated works. Some suggestions toward the development of more appropriate criteria are made.