FIRST EDITION IN ITALIAN, translated by Gallucci and adding a fifth book. The woodcuts are copied from the first edition, posthumously published at Nuremberg in 1528 as Vier Bücher von menschlicher Proportion (see previous lot). Dürer's third book, it was the synthesis of his belief that beauty was related to mathematical proportion. He makes the height of the human body the basic measurement of form. Books I and II treat of the mathematical and geometrical construction of forms; books III and IV consider the problems of variation and movement, leading to difficult and intricate considerations of spatial geometry, and finally the construction of his famous 'cube man'.