As the first comprehensive encyclopedic survey of Western architectural theory from Vitruvius to the present, this book is an essential resource for architects, students, teachers, historians, and theorists. Using only original sources, Kruft has undertaken the monumental task of researching, organizing, and analyzing the significant statements put forth by architectural theorists over the last two thousand years. The result is a text that is authoritative and complete, easy to read without being reductive.