This handbook is a valuable manual for both scholars of works of art with musical subjects and those who need a system to catalog art collections. The authors wanted to save others the time and effort of devising a workable cataloging system for their own collections. They also hoped that by making a ready-make system available, it would promote the standardization of cataloging and the cooperation of scholars working in the field. Their system for collecting pictures and retrieving information is flexible and clear and of great value to art collectors.