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According to the fine folks at Pop Chart Labs, there’s a theory that genres exist for the benefit of bookstores and at the expense of readers. Similar to a Las Vegas casino, booksellers manipulate the environment to lure you toward the money makers — I imagine librarians will be the first to object to this theory. So Pop Chart decided to look beyond these commonly accepted distinctions to see how the genres relate and where books belong based on content rather than commerce. “We went in with the idea that we were looking not at commercial distinctions, but instead peering deep into the text of the book, at almost the cellular level,” said Rachel Mansfield of Pop Chart.

The approach created some difficult decisions and surprising results: The Lion, the Witch, and the Wardrobe found its home under the “Christian” genre, rather than the expected fantasy. Explore the chart and discover what kind of books you really like. The poster is available for $29.