Stories included in this book are first appearances of favorite X-Men: Uncanny X-Men #1 (Professor X Cyclops, Beast, Angel, Iceman, & Marvel Girl,) Uncanny X-Men #50 (Polaris), Uncanny X-Men #54 (Havok), Incredible Hulk #181 (Wolverine), Giant Size X-Men #1 (Nightcrawler, Storm, and Colossus,) Uncanny X-Men #129 (Kitty Pride,) Avengers Annual #10 (Rogue,) Uncanny X-Men #244 (Jubilee,) Uncanny X-Men #256 (Psylocke,) New Mutants #87 (Cable,) Uncanny X-Men #266 (Gambit,) and Uncanny X-Men #283 (Bishop)