There are balls and balls. Balls, for, in …. Spherical and ovoid balls. Hard, soft, zero bounce, fast, sleek, high-traction, no spin balls. We play with the ball, with the hands, with the head and with the feet. We hit the ball with the bat, with the racket, with the stick or with the tambourine. On television, not lose an eye, we rejoice when bags, when it comes, when centers. While we may despair when it comes out, when it falls, when it fails or when taking the post. But we know, the balls? Associate the idea of a ball shape, a mass, a weight, a circumference, a diameter, a pressure, a material, a texture, a color is the exercise carried out. The ball is on, or before, associated with a game, a sport. An exercise in graphics, an atlas of the balls, a small and ironic encyclopedia of games and sports with the ball.