It's a lot less like an encyclopedia than I thought it would be! It's maths, but in the form of an exposition as close to prose as possible. To be honest I got

It's a lot less like an encyclopedia than I thought it would be! It's maths, but in the form of an exposition as close to prose as possible. To be honest I got goosebumps reading it. I found it worth the price. I'm fairly certain it would be worth anyone's time to find a copy in a library to take a look at.