This year's winner, a dentist and author of Managing a Dental Practice: The Genghis Khan Way, can hope for a spike in sales — but probably not patients. Last year's winning title, Crocheting Adventures With Hyperbolic Planes, saw a 1,500 percent spike in sales, despite its hyper-specific subject matter. Below you'll find past winners. Out of all of these titles, which do you think is the oddest?
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