Education 5,178 Education, Higher 1,068 History 958 Congresses 566 Universities and colleges 506 Study and teaching 491 Curricula 458 Education, Secondary 451 Adult education 419 Research 409 Technical education 390 Vocational education 382 Philosophy 374 Education and state 349 Education, Primary 344 Educational sociology 318 Educational psychology 308 Physical education and training 303 Educational tests and measurements 301 Periodicals 301 Aims and objectives 287 Education, Preschool 253 Finance 247 Training of 224 Educational planning 216 Economic aspects 206 Bibliography 201 Teaching 186 Educational innovations 185 Women 172