13 books in series

DC Anniversary Celebrations

DC Anniversary Celebrations is a 12-book series with 13 primary works first released in 2013 with contributions by Alan Moore, Elliot S. Maggin, John Byrne, Jerry Siegel, Dan Jurgens, Bill Finger, Edmond Hamilton, Otto Binder, Marv Wolfman, Chip Kidd, Grant Morrison, David S. Goyer, Joe Kelly, Bob Kane, Bill Parker, Dennis O'Neil, E. Nelson Bridwell, Roy Thomas, Paul Kupperberg, Alan Grant, Barry Kitson, Jerry Ordway, Jeff Smith, Geoff Johns, Leo Dorfman, Samuel R. Delany, Len Wein, Robert Kanigher, Gardner Fox, John Broome, Cary Bates, William Messner-Loebs, Mark Waid, Tom Peyer, Mark Millar, Paul Dini, Dwayne McDuffie, Karl Kerschl, Brenden Fletcher, Francis Manapul, Brian Buccellato, Andrew Kreisberg, Katherine Walczak, Brooke Eikmeier, Gail Simone, Chuck Dixon, Kelley Puckett, Cameron Stewart, and Inc. Dc Comics.