To observe nature means to recognize and be fascinated by patterns, to see symmetries and simple transformation laws. Since Mandelbrot recognized the unifying concept of fractal, practically everyone in the scientific community has become aware of the ubiquity of these structures with their peculiar symmetry, where their components reproduce themselves at different degrees of magnification. The purpose of this album is different from other books: the Editors have compiled a volume containing unique fractal images, some from the natural world, some mimicking the natural world via computer simulation. Everyday examples of graphic interior duplication: images that appear to contain an almost infinite sequence of patterns with only the magnitude varying, are fascinating. The majority of the more than sixty colourful images reproduced here are from scientific projects and the editors have provided the original references at the end of the book. This collection of wonderful material will guide the reader through the wonders of the world of fractals in nature and science.