…according to Amazon

• 
  The Summer’s Most Unread Book …
• Hey, what’s that book you’re not reading?

And the winner is…

At the end I suggest we call this number the Piketty Index instead, because Piketty’s unlikely megahit Capital in the Twenty-First Century comes in with an index of 2.4%, the lowest in my sample.

But it’s not the winner anymore! Hillary Clinton’s Hard Choices scores an amazing 1.9%. But somehow I feel like HRC’s book is in a different category entirely; unlike Piketty, I’m not sure I believe it’s a book people even pretend to intend to read.