Sweden has, in just a couple of decades, become a multi-ethnic society. Among young people today, building the Sweden of the future, more than one in four has a foreign background. In the book Integration among young people (in Swedish) the sociologists Carina Mood, Jan O. Jonsson and Georg Treuter have followed over 5,000 young people through their teenage years to early adulthood and had them describe their lives and living conditions in terms of school, leisure time, attitudes, visions of the future and much more .