Braille books are editions that blind people can read independently through touch. Louis Braille, who was blind himself, invented a system of non-visual, raised-dot information transmission in 1824. This became a true revolution in blind education. Information became accessible not only for reading but also for writing for people with severe visual impairments.
Letters, punctuation marks, numbers, and special characters in books for the blind are conveyed by different combinations of dots in the “Braille six-dot cell”. Blind people write in Braille using a special device and stylus to emboss the dots. Therefore, it is impossible to change the shapes and sizes of the raised dots.