This fantastic book makes optical illusions really interactive! You can create your own illusions, complete pictures and find out how classic illusions work. Activities are clearly explained, fun to do, and have amazing results. A great unusual gift for young people with busy minds!About the Author: Our in-house team have created a hugely imaginative and innovative range of titles for children aged 5 and up. From pop ups and paper engineering to board books and books plus, these fresh and original formats combine innovative concepts and exciting visual content to delight you and adult readers alike.