When first published in 1948, Sexual Behavior in the Human Male encountered a storm of condemnation and acclaim. By unshackling sex research from flawed founding constraints, Kinsey revolutionized it. In this 75th anniversary edition, featuring a new foreword from Judith A. Allen, Sexual Behavior in the Human Male revisits the work of Alfred C. Kinsey and his fellow researchers as they sought to accumulate an objective body of facts regarding sex. Originally an entomologist, Kinsey applied his fieldwork taxonomy methods to human sexuality. With 5,300 research subjects, his undertaking was the largest sex research project of its time, transforming the field. With scientific exactness, Kinsey describes the methodology, sampling, coding, interviewing, and statistical analyses, and then examines factors and sources of sexual outlet. Told through men's experiences of sexuality and reproduction, Sexual Behavior in the Human Male: Anniversary Edition is a remarkable rumination on American society and science in the early 20th century.

Originally published in 1953, the material presented in Sexual Behavior in the Human Female was derived from personal interviews with nearly 6,000 women; from studies in sexual anatomy, physiology, psychology, and endocrinology. The study revealed the incidence and frequency with which women participate in various types of sexual activity and how such factors as age, decade of birth, and religious adherence are reflected in patterns of sexual behavior. The authors make comparisons of female and male sexual activities and investigate the factors which account for the similarities and differences between female and male patterns of behavior and provide some measure of the social significance of the various types of sexual behavior.