During the 1960s, under the hands of the inimitable creative team of Jack Kirby and Stan Lee, Marvel's Thor combined the raw material of ancient Norse mythology with the nonstop action of super-heroic adventure comics and the speculative reach of classic science fiction. The result was a heady brew: epic, operatic, melodramatic, even psychedelic. This collection gathers some of the most important story arcs from the foundational years of the series and includes seminal early appearances of characters such as Hercules and Ego, the Living Planet, as well as Thor's first encounter with Galactus! The Penguin Classics Marvel Collection provides a detailed scholarly introduction, contextualizing Kirby's work on Thor within his larger oeuvre, alongside an extended critical apparatus and an appendix of additional material drawn from Kirby and Lee's popular back-up series "Tales of Asgard."