This is a contemporary book that addresses global issues in adolescent sexuality education. With chapters from international experts in sexuality, this book provides comprehensive coverage of issues including effective sexuality education, abstinence programs, and risk prevention efforts, drawing on research currently being conducted in schools and agencies across the globe. Emphasising "developmentally appropriate sex education", readers will learn about adolescents' preferences for sources of sex education, as well as the timing and topics that are critical to include. Given an increasing use of social media and technology by teens, the book addresses the intersection of sexuality and technology. This includes topics such as sexting and on line victimisation, and youth exposure to sexually explicit on line material. Strategies for both school and parents to implement to safe guard their youth are provided. With the wealth of knowledge from the international contributors to this book, culture and diversity are addressed throughout but especially in chapters on gender expansiveness, sexual minority youth, and youth with disabilities. Recommendations are made for how schools can implement sex education with adolescents in a way that will be meaningful and effective. Adapting evidenced based curriculum to local settings, as well as conducting evaluations is addressed so that program planners can ensure adolescents are receiving accurate and comprehensive knowledge and skills to make informed decisions. The latter part of this book addresses the issue of the training that is required of teachers who implement sexuality curriculums. In order for programs to be successful, those who deliver them need proper training and support. Readers of this book are sure to gain essential knowledge necessary to design, implement and evaluate inclusive and effective sexuality education with a large range of youths.