Part I: Aspects related to children’s well-being -- Chapter 1. Advances on Socio-Community Well-Being (Jorge C. Sarriera) -- Chapter 2. Spirituality and children and adolescents well-being: theoretical and empirical approach (Miriam R.W. Strelhow) -- Chapter 3. Well-being of children in residential care centers (Fabiane F. Schutz) -- Chapter 4. Use of software to improve child maltreatment detection (Tiago Calza) -- Chapter 5. Neighbourhood and housing as explanatory scales of children's quality of life (Graciela H. Tonon) -- Chapter 6. Socio-demographic profile of child well-being in Chile (Javier Guzmán) -- Chapter 7. Meanings and social contexts of well-being in children and adolescents from Chile (Jaime Alfaro) -- Chapter 8. School and Neighborhood: Influences of subjective well-being in Chilean children (Denise Oyarzún) -- Chapter 9. Fatherhood in adolescence and quality of life: a qualitative study of the experience of being an adolescent father (S.G. Câmara) -- Part II: Intervention on Children Psychosocial Well-Being -- Chapter 10. Defining psychosocial well-being indicators for children and adolescents (Jorge C. Sarriera) -- Chapter 11. Environmental Psychology and child well-being: promoting connections with nature and community (Francielli Galli) -- Chapter 12. Rights and material resources as indicators of child well-being: the challenge of promoting protagonism (Tiago Calza) -- Chapter 13. Leisure and technology as tools to promote child well-being (Fabiane F. Schutz) -- Chapter 14. Subjective well-being intervention: focus on children interpersonal relationships (Bibiana R. Santos) -- Chapter 15. Intervention in self-concept: a path to promote subjective well-being (Cristina Hasse).