Make a cuppa and take a small break and view this TED talk by Margaret Wertheim as it is interesting and if you have not encountered the Coral Reef Project before it is quite amazing. The Beautiful Math of Coral is about the Crochet Coral Reef Project which is created using a crochet technique devised by a mathematician using hyperbolic geometry.
If you are an email subscriber click on the title which will take you to the blog where you can watch it.
I am not sure about your part of the world but I know here people are once again making and enjoying snuggling up under these. They are a great way to use up scrap wool too so if you are currently de-stashing or economising you will find this free ebook useful.
Patterns are a three differnt skill levels so there is somethng for everyone.