In the book "Tits Up", author, sociologist, and journalist Sarah Thornton explores the way women and society perceive breasts. After undergoing a double mastectomy and reconstructive surgery, she began to think about how our perception of breasts affects self-esteem, health, and beauty. In five chapters, she encounters individuals from different fields, such as sex workers, plastic surgeons, bra designers, and breastfeeding specialists, creating a biography of the most significant body in cultural humanity. By crystallizing real stories with sociology, history, art, and culture, Thornton aims to liberate breasts from centuries of patriarchal bias.