An updated, 15th anniversary edition of the definitive book on kids' sexual health brings this trusted resource into the twenty-first century. Now with a brand-new chapter focusing on safe internet use - one of parents' key concerns - this universally acclaimed classic by Robie H. Harris and Michael Emberley is a cutting-edge resource for kids, parents, teachers, librarians, and anyone else who cares about the well-being of tweens and teens. Providing accurate and up-to-date answers to nearly every imaginable question, from conception and puberty to birth control and AIDS, it offers young people the information they need - now more than ever - to make responsible decisions and stay healthy.