A practical, plainly written guide aimed at adolescent girls and their mothers, offering factual explanations of anatomy, puberty, menstruation, sexual feeling, and reproductive processes; it discusses hygiene during pregnancy and miscarriage, the dangers and social effects of venereal disease, and the consequences of ignorance and silence. It argues for early, frank parental instruction and school teaching to remove shame, and presents preventive hygiene, moral considerations, and reasons for informed decision-making across life stages up to menopause.