Braille is a specialized tactile writing system developed for people with visual impairments. Nowadays, braille language is increasingly being used and made part of wayfnding and informational signs installed in public spaces, such as hospitals, government buildings, once buildings and airports. The raised dots embossed on these signs create recognizable characters, that help the users comprehend the text by feeling the dots. Examples of signs displayed with braille include directional signs, public conveniences signs, exit signs, room number or other information.