Polykleitos was a bronze artist from the 5th century BCE in ancient Greece. He is regarded as one of the most significant sculptures of classical times, besides the Athenian artists Praxiteles and Myron. Pliny's guidebook in things of painting, the 4th century BCE inventory ascribed to Xenocrates, classified him between Pheidias and Myron. He is well known for the Canon of Polykleitos, a historical work (a standard of body shape) that lays forth his mathematical foundation for an idealized version of masculine body type.