The book provides up-to-date research on the role of digital technologies in children’s, adolescent’s, and young adult’s lives, and how they navigate developmental tasks and issues utilizing these technologies. The book synthesizes the research on digital technology use and how these technologies contribute to addiction, information processing for fake news, hinder or help identity development and formation, contribute to aggressive behaviors, explore sexuality, and benefit or harm relationships with parents, teachers, friends, and romantic partners. Topics include cyberbullying and prevention, cyberbystanding, internet and social media addiction, suicide, fake news, proanorexia, and identity.