KEY People GRANVILLE STANLEY HALL Stanley Hall (1846-1924) was an American psychologist and educator, often called the father of adolescence . He was the first president of the American Psychological Association (APA) and a pioneer in child and adolescent psychology. In his in uential work Adolescence (1904), Hall described this developmental stage as a period of storm and stress , characterised by emotional turbulence and con ict. He believed adolescence was a crucial time for identity formation and psychological growth. Hall s work laid the foundation for future research in developmental psychology and significantly in uenced educational practices and the understanding of adolescent behaviour. BILL WILSON Commonly known as Bill W. (1895-1971), Wilson co-founded Alcoholics Anonymous (AA) in 1935 along with Dr Bob Smith. Struggling with his own alcoholism, Wilson developed a spiritual program of recovery that became the foundation of AA. This program, outlined in the book Alcoholics Anonymous (also known as The Big Book), includes the famous Twelve Steps , which provide a framework for individuals to achieve and maintain sobriety. Wilson s vision created a global fellowship that has helped millions of people overcome alcoholism through mutual support and shared experiences, emphasising anonymity, personal accountability, and spiritual growth. ROSS ELLIS Ross Ellis is an American leading expert and advocate in the field of bullying prevention and child safety. As the founder and CEO of STOMP Out Bullying, a national organisation dedicated to reducing and preventing bullying, cyberbullying, and other forms of abuse, Ellis has made significant contributions to raising awareness and providing support for victims. Her work includes developing educational programs, offering resources for parents and educators, and leading campaigns to promote a safer and more inclusive environment for children and teens. Ellis is recognised for her dedication to empowering young people and her efforts to create a culture of kindness and respect. 170 ADOLESCENTS