The book contains more than 50 puzzling images, each requiring you to find the mind-boggling solutions using the accompanying card press-out pieces. The clever teasers call for you to arrange or fold the specified pieces in the correct way to fit shapes inside another shape, create new shapes, pictures with an extra or missing object, patterns and logos. One of our favourites involves the optical effect tops - black and white discs which, when spun, project a colour illusion! This superb publication will delight and fascinate people of all ages, providing endless hours of fun a and frustration! All the images are designed and drawn up by archimedes-lab.org, the Italian puzzle and illusion creator, ensuring they are produced to the highest standard. The all-important answers - if you need them, of course - are also included, along with explanations as to how they work and why they fool the brain.