If you ever thought that there must be a blog for everything, you're probably right. The Dewey Decimal Blog is way more fun than the topic should be.
Here's a dab of the post, but follow the link for the full story.
Y'know, actually, it's 823.912
Bookstores don't use Dewey. Don't worry: we're over it. And anyway, if they did, there wouldn't be so many opportunities for guerrilla classification.* First there was that guy in San Francisco who went with his friends to Adobe Bookshop one night, and reclassified its entire stock by color.
025.431: The Dewey Blog