I really recommend it.
Matt gives a lot of time and energy to Numberphile, and his main reward is enduring the mixed bag of YouTube comments! :)
So it's at rare times like this we can give something back by showing support.
But the main reason you should buy his book is because it's really good.
Like a series of really good, funny Numberphile videos in written form. So without my dodgy camerawork and editing! :)
WAYS TO BUY:
A signed copy direct from Matt.
Or buy it from a book shop... Apparently they are a thing.
The book looks like this in the UK and US.