What is geometry? A dictionary might say it is the study of shapes and configurations. An even better dictionary might say it is the study of figures in a space of a given number of dimensions and of a given type. A comic might say life is pointless without geometry (and you may or may not get it). But I want you to think of geometry as a game. It's a game that starts with a few rules that we must accept, like passing "GO" brings us $200, or five cards of the same suit are called a flush. Just like any other game, if you play it the same way long enough, even math can get boring. So, mathematicians have been twisting those rules and adding to the game for centuries. For instance, when German mathematician Bernhard Riemann asked the question, "What if parallel lines could intersect?" he started a new branch of geometry that led to Albert Einstein's Theory of Relativity. Think of geometry as a game whose rules you need to learn, and then, all I ask is that you play the game.