Batman: Elseworlds

Batman: Elseworlds is a 17-book series with 17 released primary works first released in 1989 with contributions by Doug Moench, Alan Brennert, Norm Breyfogle, Lovern Kindzierski, Malcolm Jones III, Kelley Jones, John Beatty, Kelly Jones, Jamie Delano, Mike Grell, Bob Hall, Jean-Marc Lofficier, Randy Lofficier, Evan Dorkin, Eddie Campbell, Daren White, and Richard Pace.