This hardcover book from Robie Harris has sold over 1.5 million copies and has been a trusted resource on puberty and sexuality for over twenty-five years. Updated in 2021, this version has shifted to general neutral vocabulary, expansion of topics about gender identity and LGBTQIA, periods, and sexually transmitted diseases. It covers: puberty, sex, gender, sexual health, reproduction, birth control, pregnancy, birth, families, LGBTQ+, social media, the Internet, sexual abuse and sexually transmitted diseases. Recommended for ages 10+ and has 128 pages.