Another fun poppy book about math. Enjoyed it though my eyes started to glaze over towards the end of it when he devotes a lot of time to social choice theory and voting behavior. While I understood the examples, I had a hard time reading about voting options in any sort of narrative way. Otherwise this collection is surprisingly chatty and occasionally amusing for a collection of short essays about various math topics. I learned that 153 may be my favorite number and I learned about friendly and amicable numbers and a lot of other stuff that I may not use in my real life. I’ve read a lot of these sorts of books and this is one of my favorites.