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

Grade 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.

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294,482 braille cells · 309 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.