The Greek poet who tells the Pandora story in Works and Days is Hesiod.
Hesiod was an early Greek poet traditionally dated to the late eighth or early seventh century BCE. Along with Homer, he is one of the foundational names of archaic Greek literature, but his surviving poems focus strongly on genealogy, labor, justice, and relations between gods and humans.
Works and Days includes the myth of Pandora in the context of explaining why hardship exists in human life. The poem also contains agricultural advice, moral instruction, and reflections on justice. Pandora’s story is therefore part of a broader discussion rather than an isolated folktale.
Hesiod also wrote the Theogony, a major account of the origins and family relationships of the Greek gods. Readers sometimes attribute every famous Greek myth to Homer, but Pandora’s most important early literary source is Hesiod, especially Works and Days.