French language -- 67 English 54 English language -- 54 Study and teaching -- 54 Study and teaching 50 Grammar 48 Chinese language -- 43 more ... Foreign relations -- 32 Audio-visual aids 31 Spanish language -- 30 Politics and government 29 Self-instruction -- 29 Textbooks for foreign speakers -- 28 History 27 German language -- 25 Self-instruction 24 Sound recordings for English speakers 24 Self-presentation 23 Pronounciation 22 Conversation and phrase books -- 21 Foreign relations 21 Interpersonal communication 21 Public speaking 21 Description and travel 20 Politics and government -- 20 Economic conditions 19 Interactive multimedia 18 Textbooks for foreign speakers 18 English speakers -- 17 Chinese Language -- 15 less ...