Double trouble: images that appear to be two or more different objects or people * Impossible People: illusions involving people and faces * Artful Animals: illusions involving animal images, camouflage, hidden animals etc * Colours and Shapes: colour adaptation illusions, studying one image before looking at another causes odd things to happen to colour perception * Twisted!: shape puzzles * Line puzzles: Straight or curvy? How long? Which line? How far away? * Moving patterns: illusory moving patterns: You know these pictures aren't moving - but somehow it looks as if they are! * Visual Paradoxes: paradoxical Illusions, curious perception puzzles.