When the first volume of Duke-Elder's monumental work appeared, one reviewer aptly commented, "This first volume is in our judgment a great book. It is great by reason of its bulk, for it exceeds a thousand pages: it is great in its conception, and also great in its achievement." As the next three volumes came forth, other book reviewers wrote in a similar vein. One said, "For the ground it covers, this book has practically the value of a whole library." A second reviewer stated, "It goes without saying that a book of this kind should be the indispensable possession of the ophthalmologist who values a knowledge of his subject, and more particularly of one whose duty it is to instruct students." A third reviewer wrote, "Anglo-Saxon ophthalmology owes a real debt of gratitude to Duke-Elder, not only for his brilliant research work but even more for his textbook."