Section 1. Digital addiction and surrounding factors. Chapter 1. Internet addiction: the repercussions, the causes, and the treatment ; Chapter 2. The impact of family on digital addiction: an overview ; Chapter 3. Personality, internet addiction, and other technological addictions: an update of the research literature ; Chapter 4. Conceptualizing digital addiction as glutamine inhibition and glutamate acceleration (GIGA): considering the links between productivity slow-down, wakefulness, and workfulness -- Section 2. Digital addiction and wellbeing. Chapter 5. The repercussion of the internet on psychological wellbeing: discussion on diverse psychopathology and treatment approaches ; Chapter 6. Games we play: wellbeing of players of live and digital games ; Chapter 7. Psychological maltreatment and digital addiction -- Section 3. Treatment of digital addiction. Chapter 8. Treatment of internet addiction and internet gaming disorder in adolescence: a systematic review ; Chapter 9. Quantifying participation in large-scale virtual environments: encouraging opportunities for serendipity while managing digital addiction ; Chapter 10. Intervention of smartphone addiction -- Section 4. Various approaches to the treatment of digital addiction. Chapter 11. Therapeutic approaches for internet addiction ; Chapter 12. Systemic approach and digital addiction ; Chapter 13. A psychosocial approach to treating young people's and young adults' computer addictions: individual and group counseling therapeutic program ; Chapter 14. Outdoor approaches for smartphone addiction.