X-Men: One-Shots is a 16-book series with 16 released primary works first released in 1975 with contributions by Chris Claremont, Len Wein, Dave Cockrum, Fabian Nicieza, Scott Lobdell, Mark Waid, Dan Abnett, Ian Edginton, Alan Davis, Jeff Parker, Matt Fraction, Christopher Yost, Kieron Gillen, Skottie Young, Sam Humphries, Jonathan Hickman, Jody Houser, Jorge González, Bryan Edward Hill, Simon Spurrier, Gerry Duggan, Jim Mahfood, Marc Guggenheim, Aron E. Coleite, Leah Williams, Mohale Mashigo, Zac Thompson, Lonnie Nadler, Charlamagne Tha God, Chris Sims, Chad Bowers, Ed Brisson, Matthew Rosenberg, Rainbow Rowell, Charles Soule, Tini Howard, Sina Grace, Al Ewing, Kelly Thompson, Jim McCann, Duane Swierczynski, Robbie Thompson, Ruben Diaz, and Tom Taylor.