optical illusions

A collection of Harry Potter-themed, computer-generated pictures that contain hidden three-dimensional images that become visible after the reader uses the visual techniques explained in the front of the book.

A collection of Harry Potter-themed, computer-generated pictures that contain hidden three-dimensional images that become visible after the reader uses the visual techniques explained in the front of the book.

Strange sightings make for sticky situations at Einstein Elementary after Professor von Offel creates a light-beam projector that makes people see what they want to see, and its beam falls on Mr. Flask's orangutan.

With the dynamic interactive Optical Illusions, each time readers turn the page, lift the flaps, or pull the tabs, they'll be confronted with an even more amazing optical illusion! This guide to the world of eye-tricks is fun for the entire family {u2014} providing new and gasp-inducing moments on each page. Along with the illusions, which include a spinning thaumatrope, a stereoscope, and an entrancing 3D sculpture that "follows" you around the room, readers will welcome learning the latest theories about why illusions fool us.

Living in a dreary new home with his father dead, his mother hospitalized, and his grandfather increasingly distant, fourteen-year-old Isaac's wish for someone to reach out to him comes true in the form of a phantom arm that appears in a mirror box designed to help amputees, warning of danger.

Challenges the reader to solve a series of optical illusion puzzles. Solutions are provided.

Collection of 32 optical illustrations rendered in photography, artwork and computer imaging.

A collection of optical illusions and picture puzzles. "Eye Bogglers" is a pictorial feast of Bizarre Rotations, Crazy Wavy, Animal Magic, and other impossible images, designed and drawn by Archimedes Lab, the famous Italian puzzle and illusion creator. Simple commentary introduces young, curious minds to this fascinating world where art and science (and a little magic) collide, and explains how the illusions work. Kids will love testing each other as they encounter a diverse range of compelling visual challenges.

Presents a color collection of optical illusions, and includes a key that explains how each illusion was created.