Many of the works of ancient Greek and Hellenistic writers (including mathematicians, astronomers, and geographers) have been preserved up to the present time, or some aspects of their work and thought are still known through later references.
Mnoga dijela starogrčkih i helenističkih pisaca (među njima astronoma, matematičara i geografa) su sačuvana do danas, ili su bar neki dijelovi njihovog rada danas poznati preko kasnijih preporuka.