A rich assortment of visual mind-bogglers, including "impossible objects" — constructions that look fine on paper but can't possibly exist in reality — as well as pulsating patterns, vanishing spots, pictures that suddenly change into other configurations as you're looking at them, and much more. 60 black-and-white illustrations.

An incredible 365 optical illusions.

This book is crammed with puzzles designed to stimulate each of your brain's cognitive functions, keeping it strong and fit. Many different types of puzzles are included, and each of the five levels increases the challenge of solving them. Includes three self-evaluations that allow you to assess your improvement in areas such as focus, attention, memory, and more.

Fifty mind-bending illusions to surprise your eyes. An optical illusion on each page is accompanied by text explaining how the illusion works in tricking you. You'll also have the chance to create your own version of the image by shading or adding lines, helping you understand how the illusion works. Full color throughout.

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.

Contains color and black-and-white illustrations of over three hundred optical illusions, each with brief, explanatory text.

From impossible shapes to three-dimensional sketches and trick art, you won't believe your eyes as you learn to draw optical illusions in graphite and colored pencil. Perfect for beginning artists, The Art of Drawing Optical Illusions begins with a basic introduction to optical illusions and how they work. Jonathan Stephen Harris then guides you step-by-step in creating mind-blowing pencil drawings, starting with basic optical illusions and progressing to more difficult two- and three-dimensional trick art. Perspective and dimension are difficult to capture for both beginning and established artists, but now you can hone those skills in the most unique way possible, while also exercising your mind with these brain-boosting, unbelievable tricks!

Ultimate Eye Twisters is a bumper collection of crazy and mesmerizing optical illusions and visual puzzles. It contains hours of eye-boggling, mind-twisting fun for kids who love the challenges of visual trickery.

Optical Illusions Game is a new game that resembles the emory game, but with three bonuses: 1. Instead of a set of two the player has to find a set of four. 2. When the set is completed, the player has to puzzle the four cards into one image. 3. Presto: the four cards form an image of an optical illusion to discover and marvel at. The goal of the game is to collect four cards that form one optical illusion. The player who collects the most optical illusions wins the game. The optical illusions in this game were selected by Paul Baars, a world famous author and expert on optical illusions. For this game he has selected a broad range of mindboggling illusions from the famous classical ones to new illusions created by contemporary designers and artists. The Optical Illusions Game consists of 80 cards and 20 illusions as well as a brochure in which the illusions are shown and briefly explained.

An Astonishing, Mind-Bending book of more than 50 Eye-popping Illusions.