Geektastic: Stories from the Nerd Herd edited by Holly Black and Cecil Castellucci

From chapters.ca:
Acclaimed authors Holly Black and Cecil Castellucci have united in geekdom to edit short stories from some of the best selling and most promising geeks in young adult literature: M.T. Anderson, Libba Bray, Cassandra Clare, John Green, Tracy Lynn, Cynthia and Greg Leitich Smith, David Levithan, Kelly Link, Barry Lyga, Wendy Mass, Garth Nix, Scott Westerfield, Lisa Yee, and Sara Zarr. With illustrated interstitials from comic book artists Hope Larson and Bryan Lee O'Malley,Geektastic covers all things geeky, from Klingons and Jedi Knights to fan fiction, theater geeks, and cosplayers. Whether you're a former, current, or future geek, or if you just want to get in touch with your inner geek Geektastic will help you get your geek on!