Batman: The Demon Trilogy (2025 Edition) - Hardcover

Mike W. Barr has written for some of pop culture's most enduring icons, including Sherlock Holmes, Ellery Queen, Doc Savage, the Shadow, Captain America, the Hulk, Batman, Star Trek, Star Wars, and The Simpsons. He also created some icons of his own, including the comic book series Camelot 3000, Batman and the Outsiders, The Maze Agency, and Mantra. He has written for the online sites Icebox and Stan Lee Media (and lived to tell the tale), and co-created the web comic Sorcerer of Fortune.

In 2003 Barr published the Star Trek novel Gemini, and he was a contributor to the Trek e-novel Mere Anarchy, published in 2009. His book on science fiction comics of the Silver Age, The Silver Age Sci-Fi Companion, was published in 2007 and was followed by the encyclopedic The Wolverine Files in 2009. In 2010 his original science fiction novel Majician/51 was released by the Invisible College Press.

Dennis O'Neil began his career as a comic book writer in 1965 at Charlton, where then-editor Dick Giordano assigned him to several features. When Giordano moved to DC, O'Neil soon followed. At DC, O'Neil scripted several series for Giordano and Julius Schwartz, quickly becoming one of the most respected writers in comics. O'Neil earned a reputation for being able to "revamp" such characters as Superman, Green Lantern, Captain Marvel, and Batman, whom O'Neil brought back to his roots as a dark, mysterious, gothic avenger. Besides being the most important Batman writer of the 1970s, O'Neil served as an editor at both Marvel and DC. After a long tenure as Group Editor of the Batman line of titles, he retired to write full-time.