This book examines current topics concerning adolescents around the world. With its international scope, researchers from six nations contribute to our understanding of adolescent issues and programs in Australia, Canada, Italy, Northern Ireland, Scotland and the United States. While youth studies has been an active field since the better part of the last century, as most youth researchers and program and policy facilitators would agree, the lives of young people have been continuously and rapidly changing over the past few decades. Adolescent Behaviour addresses current issues that young people in today's world face. The book is divided into five sections: Indicators of Youth Well-Being, Risky Behaviour, Gang Behaviour, Youth Perceptions and Program Assessment of youth programs.