The Official Handbook of the Marvel Universe

A comprehensive, encyclopedic guide to the Marvel Universe, this 15-issue series from the mid-1980s systematically cataloged the powers, origins, and statistics of the publisher's vast cast of heroes, villains, and supporting characters. Spearheaded by Mark Gruenwald, Eliot R. Brown, and Alan Zelenetz, it transformed data-heavy profiles into a visually engaging comic format, establishing a definitive reference work that became an essential resource for fans and creators alike. Its meticulous entries and cross-referenced entries set the standard for how comic book universes could be mapped and understood.