Oral communication Public speaking 5 Communication 3 Conversation 2 English language 2 Handbooks, manuals, etc 2 Interpersonal communication 2 Visual communication 2 Communication in management 1 Engineering 1 Handbooks, manual, etc 1 Listening 1 Reading (Higher education) 1 Social aspects 1 Textbooks for foreign speakers 1 Verbal ability 1 Vocational guidance 1 Written communication 1