Book excerpt: Covering genres from adventure and fantasy to horror, science fiction, and superheroes, this guide maps the vast terrain of graphic novels, describing and organizing titles to help librarians balance their graphic novel collections and direct patrons to read-alikes. New subgenres, new authors, new artists, and new titles appear daily in the comic book and manga world, joining thousands of existing titles—some of which are very popular and well-known to the enthusiastic readers of books in this genre. How do you determine which graphic novels to purchase, and which to recommend to teen and adult readers? This updated guide is intended to help you start, update, or maintain a graphic novel collection and advise readers about the genre. Containing mostly new information as compared to the previous edition, the book covers iconic super-hero comics and other classic and contemporary crime fighter-based comics; action and adventure comics, including prehistoric, heroic, explorer, and Far East adventure as well as Western adventure; science fiction titles that encompass space opera/fantasy, aliens, post-apocalyptic themes, and comics with storylines revolving around computers, robots, and artificial intelligence. There are also chapters dedicated to fantasy titles; horror titles, such as comics about vampires, werewolves, monsters, ghosts, and the occult; crime and mystery titles regarding detectives, police officers, junior sleuths, and true crime; comics on contemporary life, covering romance, coming-of-age stories, sports, and social and political issues; humorous titles; and various nonfiction graphic novels.