Although the problem of dyslexia is widely recognized, its definition continues to be debated. This new edition of a classic book provides a synthesis of research on the cognitive deficits of dyslexia and reviews evidence concerning its biological bases. The author not only considers the causes of reading and spelling problems, but also how, in spite of their difficulties, dyslexic children accomplish levels of literacy that initially seem beyond them. The first edition of the book has been substantially rewritten, updated and extended to cover the biology of dyslexia, recent research on auditory and visual processing in dyslexia, and studies that evaluate teaching interventions for dyslexic children. Dyslexia will prove to be an invaluable resource for professionals and general readers alike.Snowling, Margaret is the author of 'Dyslexia', published 2000 under ISBN 9780631205746 and ISBN 0631205748.