Children History 522 Social conditions 468 Infants 462 Books and reading 327 Diseases 293 Child development 291 more ... Language 285 Legal status, laws, etc 279 Health and hygiene 269 Child welfare 256 Conduct of life 214 Nutrition 184 History and criticism 182 Education 177 Ninos 168 Treatment 168 Services for 159 Child psychology 150 Religious life 146 Youth 145 Children's rights 139 Institutional care 139 Psychological aspects 138 Death 133 Pediatrics 133 World War, 1939-1945 115 Children's literature 111 Families 111 Surgery 109 less ...