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

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.