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.

Combining the challenge of crossword puzzles, the look of three dimensional rendering, and the fascination of optical illusions! This book is sure to be a crossword experience you have never had before! While most crossword puzzles are kept within the limitations of a traditional cross-box, these crossword puzzles know no such bounds. Not only do words go across and down, they also can go across-up and across-down! Each crossword puzzle is uniquely constructed, having its own special design and intriguing look. With creative themes and wordplay, each puzzle is sure to keep your attention, while challenging your mind as it attempts to adjust to each optical illusion! This is sure to be a unique crossword puzzle experience for all crossword puzzle enthusiasts!

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

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.