Addymans Bookshop is hosting an exhibition of art by Stefano Tambellini over the Festival. This is the first time I've found out about something on Twitter (so it does have its uses!), and when I turned up there was a good little crowd there. Stefan has illustrated some of the Terry Deary books (the chap who writes Horrible Histories) and the work being exhibited also included pictures with a macabre Shakespearean theme.
For £5, you could get a postcard of his work, which he would then sign, together with a unique sketch on the back. He was signing all the time I was there, and I was fascinated to see that he holds his pen like a small child with a fist round a crayon! And yet his drawings have so much detail in them.