An indispensable and authoritative work on the great Baroque architect. This publication presents an updated catalogue raisonné of Gian Lorenzo Berninis architectural drawings, expanding the foundational edition published in German by Heinrich Brauer and Rudolf Wittkower in 1931 and here translated into English for the first time. By complementing the original text with essays based on more recent studies of the drawings and monuments, this volume will prove essential for anyone interested in Bernini. The original texts by Brauer and Wittkower, which remain a source of inspiration to this day, are accompanied by extensive commentary that, on the basis of current scholarship, supplements and develops the two Bernini experts analysis of the buildings. The catalogue of architectural drawings, organised by monument, brings together all sheets attributed to the Baroque architect to date. Newly written catalogue entries analyse the state of research and situate the drawings within the working process.