Publius Ovidius Naso (March 20, 43 BC-AD 17/18), known as Ovid, was a great Roman poet. His greatest work, the Metamorphoses (8 AD), remains one of the most important sources of classical mythology, beginning with the creation of the world and ending in Ovid's time. Ovid's most famous work is the Art of Love which is a didactic poem in three books which teaches the art of seduction and love. His other works include Letters of Heroines and the Fasti, an incomplete six-book exploration of Roman religion and calendar structure. Ovid remains one of the most influential writers of all time.