Fifty-six charts present data on the characteristics of American working women and their changing status over the past 25 years. The major data source is the Current Population Survey conducted monthly for the Bureau of Labor Statistics by the Bureau of Census. Part 1 provides information on employment and unemployment. In January 1975 some 36 and one-half million women were in the work force, about 40 percent of the country's entire labor force and almost 46 percent of all women 16 years and over. Part 2 shows the marital and family status. Married women living with their husbands, nearly 21 million in 1974, account for almost three-fifths of all women workers. However, the number of families headed by working women is rising. Income of working women is analyzed in Part 3, and data on their education are shown in Part 4. The great majority of working women have not yet attained parity with working men in earned income. Median usual weekly earnings of women in full-time jobs in 1974 were about 60 percent of those of men. In 1974, 72 percent of women workers had graduated from high school, compared with 67 percent for men. Part 5 provides additional information on the characteristics of working women. (Author/EA)