The American Printing House for the Blind, a 501(c)(3) non-profit organization, is the world's largest company devoted solely to researching, developing, and manufacturing products for people who are blind or visually impaired. APH manufactures textbooks and magazines in braille, large print, recorded, and computer file formats. APH also manufactures hundreds of educational, recreational, and daily living products. APH's fully-accessible website (www.aph.org) features information about APH products and services, online ordering of products, and free information on a wide variety of blindness-related topics.