This revised edition incorporates the additions and corrections recorded by Erwin Panofsky until the time of his death in 1968. Gerda Panofsky-Soergel has updated the commentary in the light of new material, and the bibliography that she has prepared reflects the scholarship on St. -Denis in the last three decades. She has obtained some additional and more recent photographs, and the illustrations include a new ground plan and a new section of the chevet of the Abbey Church, both drawn under the supervision of Sumner McKnight Crosby.