I have a brilliant and quite well known cat, Horatio Pyewackett Caractacus Fearns. He is pictured below.
I take my cat-owning responsibilities seriously. Because of this, I have several books about domestic cats. These books are all fairly alike, which is probably unsurprising, as they cover similar subject matter. One thing that all of them contain is a guide to your cat's facial expressions. I always find their interpretations to be a little general and inaccurate, and consequently unsatisfactory, so I've modified one to improve it (if you click it, it becomes bigger).