A friend once told me that he couldn't remember the last time he had used calculus. How sad. I can't remember the last time I didn't use calculus. Mathematics isn't just esoteric busywork. It's the language of cause and effect-a description of why things work the way they do. Mathematics connects the dots in the picture that is the world around us. Understanding the mathematical relationships between objects and events will give you a whole different perspective, like seeing color in a world where others see only black and white. Join me on this adventure, in which I will take you on a tour of Living Math.