This second edition of The Buildings of Yale University is published in order to include the last of the buildings commissioned during President Griswold's administration.
... Today  Yale has about 150 buildings devoted to educational use. They represent over twenty styles of architecture and, at the time of construction, cost a total of more than $130,000,000, given directly or indirectly by thousands of friends. Yale is happy to record its gratitude to all those who have in this way made the University such a special part of their lives. Many of the buildings are also memorial in nature and perpetuate the names of distinguished sons as well as friends of Yale.
Ruben A. Holden, Secretary of the University [from the Preface]
The Buildings of Yale University, Bulletin of Yale University, Series 61, Number 3, February 1, 1965.