The marital therapy literature through August, 1972, was content-analyzed to examine trends in the research and clinical practice of marital therapists. Analyses of a 415-item Marital Therapy Bibliography revealed that: (a) The literature experienced the beginning of its major growth spurt after 1960, with about half of the marital therapy publications appearing since 1967; (b) Journals contributing the most to the development of marital therapy form a heterogeneous mixture of professional disciplines, with multidisciplinary journals demonstrating the greatest impact; (c) The nature of much of marital therapy research and practice is rapidly changing, with a growing interest in empirical and methodological issues. Implications of these emerging trends in research and practice are discussed in terms of the future of marital therapy.