Children Youth Social conditions 24 History 20 Books and reading 9 History and criticism 8 Prevention 8 more ... Child welfare 7 Drug abuse 6 Drug use 6 Families 6 Research 6 Social aspects 6 Study and teaching 5 Child labor 4 Children's rights 4 Conduct of life 4 Education 4 Employment 4 Government policy 4 Intellectual life 4 Methodology 4 Moral and ethical aspects 4 Parent and child 4 Religious life 4 At-risk youth 3 Children and violence 3 Children's literature, German 3 Crimes against 3 Evaluation 3 less ...