Book reviewed in this article:Human Chromosomes. By E. H. R. Ford.Genetic Studies in Mental Subnormality. I. Familial idiopathic severe subnormality. By B. C. ClareDavison.II. The application of genetic principles in screening for metabolic disorders. By P. N. Swift, P. F. Bensonand J. D. Studdy.Inquiring Man. The Theory of Personal Constructs. By D. Bannisterand FayFransella.A Milieu Therapy Program for Behaviorally Disturbed Children. By MarjorieMcQ. Monkman.Guide to Films on Mental Handicap. By ThomasA. Pilkington.Consumer's Guide to the British Social Services. By PhyllisWillmott.