When Marvel publisher Martin Goodman asked Stan Lee to deliver another new team book for his line of comics, he had no idea he’d be getting something like The X-Men. In fact, nobody could have imagined the extraordinary phenomenon the X-Men would eventually grow into—not Goodman, not Lee, not even the forward-thinking futurist Jack Kirby. What they started out as was a charming, ragtag team of misfits, devised by Lee and Kirby to be mutants—youngsters born with “X-tra” powers thrust upon them not by accidentally crossing paths with cosmic rays or a nuclear blast, but by the fate of birth—led by a no-nonsense professor who trained them to become heroes that could protect the world from menaces, mutant and otherwise.

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Close in size to the original artworks, this XXL-sized edition features the first 21 stories of our favorite oddball super heroes from 1963–1966. The most pristine pedigreed comics have been cracked open and photographed for reproduction in close collaboration with Marvel and the Certified Guaranty Company. Each page has been photographed as printed more than half a century ago, then digitally remastered using modern retouching techniques to correct problems with the era’s inexpensive, imperfect printing—as if hot off of a world-class 1960s printing press. A custom paper stock was exclusively developed for this series to simulate the feel of the original comics.

In addition to these seminal tales are an original foreword by modern X-Men mastermind Chris Claremont, reliving the heyday of Lee and Kirby’s foundational years, and an in-depth essay by X-Men writer Fabian Nicieza alongside original art, photographs, and memorabilia from the early years of X.