Our new book (the sixth in collaboration with Rich ("Whosawhatsis) Cameron) is now up for preorder. Some pretty fun models in it!
The cover image is the probability distribution of throwing six-sided dice. The image at the far back is the flat distribution of throwing a one through six with one die. The one in the foreground is what you get when you throw five dice - it approaches a normal distribution. You can get some very new insights when you have the third dimension to play with!