Do you want to calculate like Einstein, paint like Picasso, or compose like Mozart? Put your gray matter to the brain-training test and see how you measure up to some of the greatest thinkers in history. Tackle mind-boggling puzzles, games, and optical illusions and discover what makes your brain work: from why you smile to what is going on inside your head and what side of your brain does what. Learn about neurons, how memory works, and how to boost your creativity.