Welcome to the first installment of a Narwhal's Guide to Bayes' Rule. If you don't know what a narwhal is, wikipedia can help you. Images can be clicked to be made larger.
In the next installment(s), there will be a treasure chest with a curse (you can't see what you are picking up but you can feel the spherical pearls, gold doubloons, and worthless iron coins, how will you choose?), another cursed treasure chest (now with worthless marbles and coin shaped pearls), then using Bayes' to look at evaluating risks (airplanes), forecasting, and machine learning, and finally how to remember the darn thing, additional resources and problems. You can see it all in the finished PDF!