Il terzo libro
Il terzo libro is an architectural treatise by Sebastiano Serlio, printed in Venice in 1551 by Pietro de Nicolini da Sabbio for Marchione Sessa, and aimed at builders and students of classical Roman architecture. Its plates show architectural elevations, columns, arches and moulded cornices drawn in precise woodcut-style line, with rubble-textured walls and stepped profiles, offering designers a clear reference for classical ornament and proportion.


































