With this book you can enter a realm of dazzlingly deceptive designs that offer wonderful opportunities for imaginative and inventive colouring. You'll find a host of ingeniously contrived constructions, strange, interlocking shapes and mind-boggling arrangements that defy reality and challenge the imagination to grasp their form and structure.Optical illusions are always fun to look at; colouring these masterly mind-bending illusions will add an extra dimension of enjoyment and foster a new appreciation of mysterious pictorial puzzles that make us wonder if seeing is truly believing.