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

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.