李衍华

Li Yanhua is an author who focuses on language expression and the application of logic. Publicly available information about him is limited, and his nationality, dates of birth and death, and educational background are not clearly recorded. Three of his works are currently included in the collection: Logic, Grammar and Rhetoric (2nd Edition), The Logic of Wording (Revised Edition), and The Logic and Techniques of Speaking. These titles span categories such as language and writing, society and culture, and inspirational growth. Judging from the titles and categories, he pays attention to the interrelationship among logic, grammar and rhetoric, and values the practical use of logic in daily life and spoken expression. His writing tends to ground abstract logical knowledge in concrete wording and speaking techniques, popularizing language norms and methods of thinking for general readers.