Saving the World: A Guide to Heroes by Lynnette Porter, David Lavery and Hillary Robson (ECW Press, about $17) is not your usual, gushing and quickly written tribute book about a popular TV show. All three co-authors are scholars of popular culture. Not only is the book a smart and useful guide to the intricate plotting on the series' first season; it examines the Heroes concept in the context of the wider comic-book culture.