‘Detective Comics’ #27
“Detective Comics” #27 introduced the world to another of the 20th century’s most enduring modern myths: the Dark Knight himself, Batman. As with “Action Comics” #1, very few copies of this book still exist thanks in large part to World War II paper recycling efforts, back when comics were seen as just as disposable as newspapers. “Detective Comics” #27 very rarely goes on sale, but in 2010 a relatively intact copy of the book sold for a little over $1 million. It’s theorized that a near mint condition copy of this book would be the most valuable comic in the world.