Literacy is essential for an individual's participation in our society. The inability of a child to attain proficiency in reading has profound social and emotional consequences; it results in anxiety on the part of the child, and perhaps, even more, on that of his parents. This in turn leads to demands for changes in the educational system and a frantic search for cures. Thus, it is not surprising that during the past 60 years well over 20,000 books, articles, and papers have been published on reading disability.