The present volume is the second edition of an earlier work published by Basic Books in 1956 under the editorship of Roy R. Grinker, Sr. The only major additions include a clear concise summary of general systems theory and an epilogue by Jurgen Reusch. This volume has been available for a short period of time and is, in part, a response to the rather suddenly widespread interest in general systems theory.
The sessions entitled "General Systems Theory and Psychiatry" at the two most recent annual conventions of the American Psychiatric Association were well attended and aroused enthusiastic and intense comment. Several months ago at the first morning session in Detroit (May 11, 1967), Karl Menninger, who was seated next to me, wrote in a personal note, on surveying the crowded room with many standees, "It is incredible that so many should come—and so many should