It is easy to agree that those interested in the study and amelioration of human behavior should have the means to communicate with each other and share experiences, but it is not so easy to agree on the method. Particularly for psychiatrists and social workers, the need is great. This report indicates fairly and helpfully the problems these two influential professions have in making common cause—psychiatry from the individual's side and social work from society's. There is, of course, no need to make a social worker of the psychiatrist or a psychiatrist of the social worker. Each of these disciplines has all it can cope with if it sticks to its own last. If this report accomplishes nothing else (and I think it has done much more) than suggest ways in which the psychiatrist can serve the social worker better by understanding more clearly the social worker's needs, it will have achieved its purpose.