Optical Illusion Magic: Visual Tricks & Amusements (repost)
Optical Illusion Magic: Visual Tricks & Amusements by Michael A. DiSpezio
(December 31, 2001) | ISBN: 0806966270 | 80 pages | PDF | 16,4 MB
(December 31, 2001) | ISBN: 0806966270 | 80 pages | PDF | 16,4 MB
You won't believe your eyes, and perhaps you shouldn't. Once you read this book, you'll understand how your perception can be skewed by the way your brain processes certain input. Using information learned from previous experiences, your brain tries quickly to make order out of what you're seeing. Page after page of illusions will have you reaching for a ruler to see if lines really are the same length or if the sides of that square are straight or bowed. Author DiSpezio presents many classics, such as the ambiguous drawing that might be a vase and might be two faces, as well as some less familiar ones.
There are even directions on how to make some of your own magic. A few pages are a little confusing where a busy background interferes with an illusion or the layout makes the text difficult to follow, but it is worth the extra effort to read carefully, because you won't want to miss any of these visual tricks.