Here's today's Santa! It's... Paul Erdős Santa!
This one's for my Dad, who has an Erdős number of 1. Yeah, that's right, you heard me. 1. I have provided illustrations for various of my Dad's books and lectures over the years, and so I have arbitrarily decided that this means I have an Erdős number of 2. If you have no idea what Erdős numbers are, there was a little piece on the subject on a recent episode of the wonderful podcast Radiolab, or you can just, y'know, look on wikipedia or something.
And to the 99.9% of regular readers of this blog who I have just completely baffled / alienated: it'll be mutant crabs or zombie pirate lizard-men or something again tomorrow, promise.