What do you see? Colour it in! In the 1970s, Professor Sir Roger Penrose discovered some amazing tiles. They could fill a vast surface to produce beautiful pentagonal patterns at every scale which never repeated. Altair Design is proud to present the world's first Penrose Tilings colouring book. Choose a design. Relax, and look without staring. Slowly, faces, animals, scenes and patterns will appear. Every aperiodic pattern in this pad perfectly overlays every other! Fire up your creativity and enhance your visual imagination!