Okay.... we all know about circles, cones, triangles, cubes, etc. But what to you call things like trees, broccoli, lightning, your lungs? What shape are they? Here's your answer! Thanks to Benoit Mandelbrot, a mathematician who named fractals in 1975, we have a common name. Love the photos in this book. Perfect for Fizz, Boom, Read and STEM (Science Technology Engineering and Math) reading.