Flowers for Algernon (Keyes)

Book Reviews 
Flowers for Algernon...is a technician's maze. ...That it works at all works at all as a novel is proof of Mr. Keyes's deftness. And it is really quite a performance. He has taken the obvious, treated it in a most obvious fashion, and succeeded in creating a tale that is convincing, suspenseful and touching—all in modest degree, but it is enough. The obvious part is the message: We must respect life, respct one another, be kind to those less fortunate than ourselves."
Eliot Fremont-Smith - New York Times (1966)

Strikingly original....
Publishers Weekly

Absorbing... Immensely original... Going to be read  for a long time to come.
Library Journal