Here for sharing far and wide is a clear, concise, animated guide to CPR (conventional and compression only) for adults and kids ages nine and up. Helpfully, it also includes animated instructions for resuscitating cats, and dogs of different sizes and breeds.
Additional, written details can be found at this article by Robin Blunck, where the visualization was originally posted. It's not every day you come across a well-designed information visualization with so urgent a message. As how-tos go, this one has the potential to be a real life-saver. Hats off to the unnamed visualization artist (or team of artists) at Carrington College for creating it: