German language 255 English 184 Grammar 82 Textbooks for foreign speakers 75 Spoken German 44 English language 38 German 34 Conversation and phrase books 33 Dictionaries 24 Verb 18 Self-instruction 15 Study and teaching 13 Composition and exercises 12 Vocabulary 12 Glossaries, vocabularies, etc 9 Sound recordings for English speakers 8 Business German 6 Pronunciation by foreign speakers 5 Audio-visual aids 4 English speakers 4 Problems, exercises, etc 4 Usage 4 History 3 Study and teaching (Secondary) 3 Terms and phrases 3 Case 2 Conversation and phrase books (for merchants) 2 Dutch language 2 Dutch language, Conversation and phrase books 2 Duty 2