The first ever signed copy of Freakonomics!

For reasons explained here, I have the first ever signed copy of the million-selling Freakonomics in my possession. I’m selling it on eBay and will donate the proceeds to Steve Levitt’s preferred charity, ‘Smile Train’. Go and bid… it’s for a good cause, and it could be worth a fortune in years to come!

Update: Sold for $610, and Steve Levitt has thrown in another $610 of his own money. That’s a lot of smiles…