All kinds of material can be put into braille, from bank statements to bus timetables, maps to music.
Braille is either written (for instance, using hand frames), typed out directly (for instance, using a dymo labeller) or printed (for instance, using an embosser).
Braille can either be produced from scratch, or converted from an existing file. Equipment to produce braille ranges from a simple handframe to industrial strength embossing machines that produce thousands of pages of braille an hour.