Cutaneous reprogramming is a method of helping people with dyslexia (and other learning problems) learn to distinguish letters by feeling their shapes rather than just looking at the letters on paper. Using the tactile sense to become familiar with the connection between the form of a letter and its sounds can be done in a lot of ways: drawing and feeling letters in a tray of sand; modeling them in clay; handling wooden letters, and just about anything else one can think of. Maria Montessori used cut-out sandpaper letters and other movable letters for instructing children whether or not they had any reading problems; using touch as well as sight and hearing can increase a lot of people's avenues to learn how to work with the written word.

Sources:
Lappé, Marc. The Body's Edge: Our Cultural Obsession with Skin. New York: Henry Holt and Company, 1996.
http://www.montessori.org/Resources/Library/Educational/lifelit.html
http://www.readingnaturally.org/pobusiness.htm
http://www.dyslexia.com/library/ready.htm
http://www.education-otherwise.org/publications/eoleaflets/dyslexia.htm
http://www.hcity.com/glp_more.html