Yellow
Why Braille blocks should be yellow
image text translation (1)Choi Jeong-geum, Korea Blind Association(2)I rely on braille blocks to find escalators(3)I’m using a block of judo …
image text translation (1)Choi Jeong-geum, Korea Blind Association(2)I rely on braille blocks to find escalators(3)I’m using a block of judo …
