First published over sixty years ago, Hugh Morrison's Louis Sullivan: Prophet of Modern Architecture was the first definitive biography of the now-famous architect and is still the best introduction to his work. This reissue provides Morrison's classic text, completely redesigned and reset in a larger, more modern format. It also offers an assessment of Hugh Morrison's ground-breaking research, in Timothy J. Samuelson's Introduction, and, most important, an authoritative revision of the chronological List of Buildings, including corrections of the data in light of six decades of research. The most complete and up-to-date summary of Louis Sullivan's work, both built and unbuilt, the Building List contains information on buildings discovered since the original publication, incorporates new information on specific buildings, and notes the status of buildings demolished since first publication.