I woke up on Wednesday morning to find the banner above adorning the Amazon page for Knots. While that was lovely decoration to see after one day of sales, how was that possible? It turned out that Amazon had taken it upon itself to add an additional category to the book: Fractal Mathematics. In that slow-selling corner of the book world, it didn't take much to hit the top. Still, this is fiction, not math, so I'll see if I can get the category changed. After I admire that banner a little longer.
If you haven't picked up a copy yet, get it now, and enjoy the company of a charming thief. And his cat.