This volume presents key findings from the Measuring Youth Well-being (MYWeB) project which takes a balanced approach in assessing the feasibility of a European Longitudinal Study for Children and Young People (ELSCYP) through prioritizing both scientific and policy imperatives. It draws on the original empirical data on field experiences from a number of European countries, and discusses strategies and methodological challenges for involving children and young people in well-being research in order to fight poverty and social exclusion. It does so by looking at different options to measure the well-being of children and young people across Europe using a child centric approach. Written by experts from a variety of disciplinary backgrounds in the areas of children and young people's well-being, childhood care, education, the environment in which a child grows up, childhood/youth work and leisure and participation.