However, making anything except words accessible remains a formidable challenge.
Some items are almost impossible to make accessible to blind readers.
They allow a computer user to make hard copy materials involving line and block graphics and virtually any type of text accessible. Standard computer applications may be used, and little special training is needed by the preparer. DotsPlus uses literary braille symbols where possible, so the reader does not need to be familiar with math braille or computer braille codes. The philosophy of DotsPlus is to present tactile graphic material in essentially the same spatial layout that is used for visual material. Thus, text and labels may be included in arbitrary positions in graphic materials.