Standup mathematician Matt Parker opens his heart to reveal... a standup comedian who loves mathematics.
This is the link for 'Humble Pi' - signed first-edition hardback
Matt Parker videos on Numberphile
The notorious Parker Square video
Parker Square T-Shirts via Numberphile on Teespring
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A note: Humble Pi will be released at different times in different countries, but you can get your signed copy ASAP pretty much ANYWHERE in the world via Maths Gear