I'm not the author and obviously don't know for sure, but bit.ly can be a poor man's click tracker. Here are the stats for Rich Hickey's reading list on Amazon:

I'm not the author and obviously don't know for sure, but bit.ly can be a poor man's click tracker. Here are the stats for Rich Hickey's reading list on Amazon: https://bitly.com/hIlovG+ https://bitly.com/hIlovG+