Oversized hardcover collecting X-Terminators #1-4, Uncanny X-Men #239-243, X-Factor #33-40, X-Factor Annual #4 and New Mutants #71-73.
This hardcover edition includes more issues then the previously released trade paperbacks, X-Men: Inferno.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/x-men-inferno/4050-42573/).
