The book "Limiting the number of families" was written by Margaret Sanger, who was one of the leading figures in the movement for women's reproductive rights. In her book, published in 1914, she tackled the topic of birth control, advocating that women should have the right to choose in the matter of family planning. The author argues that access to contraceptives will help women decide when and how many children they want to have. "Limiting the number of families" became one of the key works in the fight for women's reproductive rights and influenced the further development of public attitudes to this topic.