I am an architectural historian, working on the English Renaissance and Italian architectural literature. I am concerned with the symbolic meaning of architectural forms, and the use of proportion and images of antiquity in composing building design. The role of the human body in architectural composition, and the images of the body produced during the Renaissance, has been a particular interest. I have translated the treatises of Sebastiano Serlio, studying one of the first uses of woodcuts to illustrate classical architectural principles. I have also written monographs on the great English architectural masters Inigo Jones, John Vanbrugh and Nicholas Hawksmoor. All these works have been published by Yale University Press.