Now with expanded information on internet safety, birth control, sexual harassment and more, this universally acclaimed classic by Robie H. Harris and Michael Emberley is a brilliant resource for children, parents, teachers, librarians and anyone else who cares about the well-being of pre-teens and teens. Providing accurate and up-to-date information to answer young people's concerns and questions, from conception and puberty to birth control and AIDS, it offers everything they need to make responsible decisions and stay healthy.