Hannah's Book

Thanks to Numberphile regular Hannah Fry for supplying some signed copies of her Christmas mathematics book - The Indisputable Existence of Santa Claus.

The book has been updated from last year with a whole new chapter, new cover, and fewer typos, according to Hannah.

The copies signed by Hannah and her co-author Dr Thomas Oléron Evans have been sent to top Numberphile Patreon supporters (you will have been messaged if one is coming!)

However if you'd like to buy the book, it's available all over the place... Or you can use the Amazon affiliate links below.

UK link: http://amzn.to/2jDnPRV
US link: http://amzn.to/2B2NoA6

It's not just a fun book - it's great to support the work of people like Hannah who have always been generous with their time for Numberphile.

Looking for stocking fillers? Other Numberphile collaborators with great books include...

Steve Mould and Helen Arney (this is a new one - check it!):
http://amzn.to/2ja3WxA (UK)
http://amzn.to/2zSGMpC (US)

Alex Bellos books: http://amzn.to/2hNMLFA

And of course Matt "Parker Square" Parker:
http://amzn.to/2hLg5wt (UK)
http://amzn.to/2jEQfe0 (US)