Sometimes, you just want one thing done right. You go to Crumbs or Sprinkles for cupcakes, DiFara for pizza, Umami for a burger. You know they only do one thing and do it well. What about books? Sure, you could go to Mysterious Galaxy for mystery (ok, and other types) books, or head over to O’Reilly for your technology tomes. That’s what vertical is all about! But what about a store that sells just one book? Now you have it! Andrew Kessler is selling his book, Martian Summer, out of a storefront in New York’s West Village. It certainly is great advertising, even if I can’t quite figure out the economics of it all. The again, the article ends with the charming Mr. Kessler explaining, “I’m not a very good businessperson.” Indeed. But the free advertising he just got in the New York Times might well be worth it!