This document discusses language and communication. It covers the nature and development of language, including that language is a symbolic system of sounds that convey meaning when put together. It also discusses the diversity of languages, with approximately 6,000 existing, and examples like Indo-European and Amerind languages. The structure of language is also examined, looking at the building blocks of phonology and grammar, including morphology and syntax. Finally, it briefly touches on language and culture, and nonverbal communication norms that vary across cultures.