Thanos Sourcebook

Marvel’s Thanos Sourcebook (2010) is a single-issue handbook that catalogs the Mad Titan’s cosmic history, powers, and key allies and enemies, published during the height of the character’s prominence in Marvel’s cosmic line. Assembled by the Marvel Bullpen, it compiles data from the character’s appearances up to that point, offering a definitive reference for fans of the franchise. While brief, it stands as a concise snapshot of Thanos’s mythos at a pivotal moment in his publication history.