adam hughes. who's known for his dramatic d.c.omic cover illustrations is one of the nearly 1,000 entrepreneur artists vendors who attend this once a year comic book convention held in san diego, california. >> you get the most exposure. i'd have to do ten other large shows to equal what i do in san diego. >> to the outsider, the con may look like nothing more than a big dress up party. for those entrepreneurs who understand it, it's a booming niche market. stewart is a los angeles-based entrepreneur whose niche is self-published sketch books and books by hard to find comic book illustrators, people like adam hughes. books that other animation pros are eager tonight and buy. >> the animation industry and the comic industry he is a really valuable resource. everybody i know buys their books from stewart because he has all the best stuff. >> i've already gone through and gotten rid of all the chaff. and here's the good stuff. >> in general it's hard to find these books especially this one. >> he curates his collection not available

angeles-based entrepreneur who's niche is comic books by hard to find illustrators, people like adam hughess like other comic and animation pros are eager to find and buy. >> the animation industry and comic industry, he is a really valuable resource. everybody i know buys their books from stuart. because he has the best stuff. >> i've gotten rid of all the chaff, and here's the good stuff. >> ng focuses on books not available through chains like amazon or barnes and noble. >> i've developed a philosophy of not competing with them. so if it's available on amazon, i'm very unlikely to carry it. >> he's one of the guys you go to when you're looking for obscure tracts on art and painting and just wonderful graphic sensibilities that you can't find at regular bookstores. >> stuart ng and his online component has developed a steady customer base. customers not only buy his books but also send their friends to buy books too. in turn, many of them offer ng exclusive rights to distribute their own self-published sketch books. this relationship has paid off. despite the crippled economy, ng's busine