Known originally as X-Men King Size Special or King Size Annual. The cover title changed several times, but the indicia was always listed as X-Men Annual Vol 1. The series only added the "uncanny" with issue 16, after which it was continued into The Uncanny X-Men Annual with issue 16.
Collected EditionsMarvel Masterworks: Uncanny X-Men, Vol. 4 (#3)X-Men Epic Collection: Proteus (#3)Marvel Masterworks: Uncanny X-Men, Vol. 5 (#4)X-Men Epic Collection: The Fate of the Phoenix (#4)Uncanny X-Men Omnibus Volume 3 (#6-7)Marvel Horror Lives Again! Omnibus (#6)Uncanny X-Men Omnibus Volume 4 (#8)New Mutants Classic, Vol. 5 (#9)X-Babies Classic (#10 & 12)X-Men: Mutant Massacre Omnibus (#11)X-Men: Inferno Prologue (#12)X-Men Epic Collection: Mutant Genesis (#15)Issue #12 has been translated into Spanish.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/x-men-annual/4050-22988/).
