Yes / The aim of this paper is to explore eleven year old children's understanding of well-being through their completion of Well-Being Maps and subsequent interviews on their content. The children were asked to describe the people, places and things which they viewed as important to their sense of well-being. The subsequent interviews explored their rationalisations for their choices. Ninety-two eleven year old children attending four schools with varying levels of deprivation and ethnic diversity took part in the study. This is the first section of an English study which is a part of the Multi-National Children's Understanding of Well-Being Study involving 26 countries which aims to explore how children conceptualise and experience well-being from a comparative and global perspective. Commonalities and divergences in the English children's responses were explored. Across the entire sample of 92 children, there were clear commonalities. Relationships with family, predominantly parents, were viewed as very important. The reasons provided were consistent love and affection; constant support, encouragement and protection; fun to be with. The duration of this quality of parent-child interaction appeared to be the key. Trust and a sense of security were the result. Relationships with friends were deemed important by over two thirds of the children. The qualities of these relationships mirrored those with the parents with a sense of trust and security being present. Where places and activities were included on their maps, they were often linked to important relationships. Activities appeared to be important in acknowledging the relationship but also maintaining it. Activities were also valued by the children for skill development. There were some differences across the sample with relationships with friends and grandparents being more reported as important in the two areas of high deprivation, irrespective of ethnic diversity. The level of material possessions and holidays abroad were much more frequently reported in the school serving the low deprivation area. At times, the explanations for differences appeared to be an interplay of socio-economic factors and religious and cultural traditions. Suggestions for further research on children's perspectives on factors important to their well-being are made. / Health Foundation, England