The Official Handbook of the Marvel Universe: Master Edition

Marvel's Master Edition (1990–1993) was an ambitious 36-issue encyclopedia-in-comic-form, expanding the classic Official Handbook concept with detailed profiles of heroes, villains, and concepts across the Marvel Universe. Overseen by regular writers Mark Gruenwald and Tom Brevoort, each issue delved into the powers, histories, and connections of characters like Logan, Ororo Munroe, and Jason Wyngarde, alongside more obscure figures such as Blackout and Donald Pierce. This series mattered as a definitive, era-spanning resource that codified Marvel's continuity during a period of explosive growth, offering fans a comprehensive and visually rich guide to the ever-expanding world of comics.