Eye Bogglers is a crazy picturegallery of mesmerising opticalillusions and visual puzzles. Itcontains many new adaptations oflesser-known optical illusionsand plenty of favourite classics.A simple commentary introducescurious minds to this fascinatingworld where art and sciencecollide, and explains why theillusions work as they do.

"In this book we have included classic and new optical illusions that will delight children and grown-ups as well as inquisitive minds in search of solid, accessible material on this amazing subject"--Page 5.

An interactive activity and coloring book featuring 50-plus "impossible" optical illusions to color along with, and activities that show kids how to create their own optical illusions.

Fun-filled, math-based puzzles include Elephants and Castles, Trianglized Kangaroo, Honest Dice and Logic Dice, Mind-reading Powers, and dozens more. Complete solutions explain the mathematical realities behind the fantastic-sounding challenges.

With more than 100,000 copies sold, Roget's Superthesaurus continues to be one resource that writers can't live without. Yet its large size makes it difficult to carry to coffee shops, writer's groups, and even to class. Finally, all of its invaluable information is now available in a pocket-size, value-priced format. Inside, users will still receive the same content they've come to depend on, including: * More than 400,000 synonyms and antonyms, organized in a clear and accessible way * The indispensable time-saving ``Word Find'' reverse dictionary * Vocabulary builders illustrated with sample sentences and well-known quotations Perfect for writers, students, and even the office, this book is a must-have reference.

Fool your brain with mind-boggling illusions, then get hands-on and make your own to wow your friends! Learn all about the science behind these wacky phenomena, from moving liquid on a page, to shapes that disappear in front of your eyes with this clever guide. The brain is an amazing thing, but it doesn't always get things right when it comes to sight. This book is here to explain why, with astounding images, baffling puzzles, and simple reveals which show the reader how each trick works. Covering a range of optical topics, from shapes and movement, to light and reflection, this cool manual contains templates at the back which reveal answers and help you to create your own astounding illusions.

This paperback treasury is perfect for the insatiable Magic Eye fan. This paperback treasury is perfect for the insatiable Magic Eye fan. Challenge family and friends to see who can view these 88 new eye-popping 3D images the fastest This book is popular among many Magic Eye fans, and a waiting room favorite in offices and schools.