OPTICAL ILLUSIONS

Get your eyes watering and mind spinning with more than 50 visual illusions in this engaging, interactive book.As you would expect from a book called Optical Illusions, there's more to this book than meets the eye. There are pop-ups, spinners, tabs and flaps, and a fantastic 3D sculpture to assemble that follows you around the room. You are tasked with 'solving' each awesome illusion, which also comes with explanation of how and why it works.So if you want to see straight lines bend, identical colours as different shades, printed pictures that float, and hidden images revealed - and also understand why you're fooled by them - then the award-winning Optical Illusions is the perfect pop-up book for you.