This ""Manual for Parents of Mentally Retarded Children"" faces a problem which is of direct concern to an appallingly high number of American families. In a specific and helpful manner the authors indicate the means of diagnosing the subnormal child, and -- depending upon his limitations- the methods of dealing with him emotionally and educationally. They also discuss the attitude of the parent toward himself and the child, in an effort to achieve the most practicable and least strained method of coping with the problems involved.