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Visual Illusions: Their Causes, Characteristics and Applications ⠃⠗⠋ braille edition

Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.

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350,115 braille cells · 371 embossed pages at 40×25 · 572 unrepresentable characters omitted

⠋⠕⠗⠍⠑⠗⠀⠉⠁⠎⠑⠀⠞⠓⠑⠀⠉⠊⠇⠊⠁⠗⠽⠀⠍⠥⠎⠉⠇⠑⠀⠁⠙⠚⠥⠎⠞⠎⠀
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⠊⠍⠁⠛⠑⠀⠥⠏⠕⠝⠀⠞⠓⠑⠀⠗⠑⠞⠊⠝⠁⠲⠀⠠⠊⠝⠀⠁⠭⠊⠁⠇⠀
⠁⠙⠚⠥⠎⠞⠍⠑⠝⠞⠎⠀⠞⠓⠑⠀⠞⠺⠕⠀⠑⠽⠑⠎⠀⠁⠗⠑⠀⠞⠥⠗⠝⠑⠙⠀⠃⠽⠀
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⠞⠕⠛⠑⠞⠓⠑⠗⠀⠺⠊⠞⠓⠕⠥⠞⠀⠙⠊⠎⠞⠊⠝⠉⠞⠀⠧⠕⠇⠊⠞⠊⠕⠝⠀⠋⠕⠗⠀
⠑⠁⠉⠓⠀⠃⠥⠞⠀⠃⠽⠀⠞⠓⠑⠀⠎⠊⠝⠛⠇⠑⠀⠧⠕⠇⠥⠝⠞⠁⠗⠽⠀⠁⠉⠞⠀⠕⠋⠀
⠇⠕⠕⠅⠊⠝⠛⠲⠀⠠⠞⠓⠗⠕⠥⠛⠓⠀⠑⠭⠏⠑⠗⠊⠑⠝⠉⠑⠀⠞⠓⠑⠀
⠊⠝⠞⠑⠇⠇⠑⠉⠞⠀⠓⠁⠎⠀⠁⠉⠟⠥⠊⠗⠑⠙⠀⠁⠀⠺⠕⠝⠙⠑⠗⠋⠥⠇⠀
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⠎⠊⠵⠑⠂⠀⠋⠕⠗⠍⠂⠀⠁⠝⠙⠀⠙⠊⠎⠞⠁⠝⠉⠑⠀⠊⠝⠀⠞⠑⠗⠍⠎⠀⠕⠋⠀⠞⠓⠑
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⠞⠓⠑⠀⠕⠃⠎⠑⠗⠧⠑⠗⠀⠃⠑⠊⠝⠛⠀⠉⠕⠝⠎⠉⠊⠕⠥⠎⠀⠕⠋⠀⠎⠥⠉⠓⠀
⠊⠝⠞⠑⠗⠏⠗⠑⠞⠁⠞⠊⠕⠝⠎⠲⠀⠀⠠⠃⠊⠝⠕⠉⠥⠇⠁⠗⠀⠧⠊⠎⠊⠕⠝⠀⠊⠎⠀
⠑⠁⠎⠊⠇⠽⠀⠗⠑⠉⠕⠛⠝⠊⠵⠑⠙⠀⠃⠽⠀⠓⠕⠇⠙⠊⠝⠛⠀⠁⠀⠋⠊⠝⠛⠑⠗⠀
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⠃⠑⠽⠕⠝⠙⠀⠊⠞⠲⠀⠠⠞⠓⠑⠀⠗⠑⠎⠥⠇⠞⠀⠊⠎⠀⠞⠺⠕⠀⠁⠏⠏⠁⠗⠑⠝⠞⠇⠽
⠀⠞⠗⠁⠝⠎⠏⠁⠗⠑⠝⠞⠀⠋⠊⠝⠛⠑⠗⠎⠲⠀⠠⠁⠝⠀⠕⠃⠚⠑⠉⠞⠀⠊⠎⠀⠎⠑⠑⠝
⠀⠎⠊⠝⠛⠇⠑⠀⠺⠓⠑⠝⠀⠞⠓⠑⠀⠞⠺⠕⠀⠗⠑⠞⠊⠝⠁⠇⠀⠊⠍⠁⠛⠑⠎⠀⠋⠁⠇⠇
⠀⠕⠝⠀⠉⠕⠗⠗⠑⠎⠏⠕⠝⠙⠊⠝⠛⠀⠏⠕⠊⠝⠞⠎⠲⠀⠠⠙⠊⠗⠑⠉⠞⠊⠕⠝⠀⠊⠎⠀
⠁⠀⠏⠗⠊⠍⠁⠗⠽⠀⠙⠁⠞⠥⠍⠀⠕⠋⠀⠎⠑⠝⠎⠑⠲⠀⠠⠞⠓⠑⠀⠏⠗⠕⠏⠑⠗⠞⠽⠀
⠕⠋⠀⠉⠕⠗⠗⠑⠎⠏⠕⠝⠙⠊⠝⠛⠀⠏⠕⠊⠝⠞⠎⠀⠕⠋⠀⠞⠓⠑⠀⠞⠺⠕⠀

These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.