They're interesting, involving, beautiful, subtle and they all play visual tricks! Step into the colour zone...where astonishing effects are the rule and nothing is what it first appears to be. Make different colours look the same!; Make the same colours look different!; Use colour to make objects look bigger or smaller!; Make sense of the illusion!; Colours can always fool you - making objects seem larger, smaller, faster than they are. And when they interact with a range of very special forms and shapes, the optical magic becomes more powerful still. The trick is often in the backgrounds; do the multicoloured arrows set against grey and black, point outwards or in? (The black makes the complimentary colours come forwards, while the flatter grey pushes them back). Top author is Professor of Graphic Design, specialising in colour and its applications, whose artwork has been exhibited in numerous galleries.; Fun market: puzzlers and games enthusiasts of all ages.; Serious market: art students, graphic designers.--This text refers to an out of print or unavailable edition of this title.