This is a very interesting exposition of the development of group therapy and its practice by Foulkes (and his groups) in a British Army hospital during the last war. The results which accrued from this therapeutic method in such a situation were so rewarding that Foulkes is moved to say, 'the widest viewpoint … may see in it [group therapy] an instrument, perhaps the first adequate one, for a practicable approach to the key problem of our time: the strained relationship between the individual and the community'.