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  • 1st team appearance of the Sinister Six: Doctor Octopus, Kraven, Vulture, Electro, Mysterio, Sandman
  • 3rd appearance of Kraven, Vulture, Electro, Mysterio and Sandman
  • Reprinted in Marvel Tales #150
  • Character profiles of Dr. Doom, the Lizard and others
  • Additional pages explain how Spider-Man's powers and gadgetry work
  • [July 2020 - speculation that a Sinister Six team will be formed in Spider-Man 3]
Details
Publisher Marvel
Published December 1964
Written By Stan Lee
Illustrated By Steve Ditko