Dr Anagnos is the director of The Perkins' Institute for the Blind and he understands potential, encouraging Annie as her mentor when she is uncertain whether she is ready to teach at the Keller's home. He recognizes Helen's enormous capacity for learning and becomes a dear friend to her. Unfortunately, although he claims to believe Helen, he is unable to shake the feeling that she may have deceived him in writing her version of Canby's story and he never regains his unquestionable faith in her to the point of his attitude being "hostile and menacing" (ch XIV). However, his contribution to Helen's amazing success and to the lives of many blind children with whom Helen comes into contact is indisputable.