References Kurt Busiek & Alex Ross.
Letters from: Scott McCloud, Toni T. Portoghese, Ryder Windham, Bob Hires, Bob Morris, Henry R. Kujawa, Reid H. Cooper, Kenn Minter, Steve Laffler, Bruce Bollinger, Frank Kurtz, Marcel Walker, Matthew Guest, David McFadden, Dave Dodge, Troy A. Dreier, Charles Brownstein, Saro, Mike Hall
Fan art from: S. L. Doctorow, Loran Skinkis, Roy Duncan, Rick Van Dongen, Kenn Minter, Erik Katzen, Marcel Walker