A popular educator of long standing and national reputation writes here of the psycho-physiological development of the child, in terms of allover patterns rather than specifies, the bred line rather than the actual handling. Childhood as a period of exploration and preparation; discipline as a plan of training, not a system of chastisement; the motivating factors of wants and needs; the development of and emotions -- of security, responsibility, language, a consideration of education, the importance of the nursery school; the parents' role and what constitutes a good parent. The material may not be particularly new, but it represents a reasonable and not too liberal point of view, by a man who represents a sound middle-of-the road position. The mother with no background needs something more elementary; this is keyed to child study groups, P.T.A. study, teachers and those dealing professionally with young children. Blat has a wide following.