This document summarizes discourse analysis, which is the study of language use in context. It looks at both spoken and written interaction and considers linguistic and non-linguistic factors. Spoken discourse follows patterns of interaction like turn-taking and adjacency pairs. Written discourse allows more planning but relies on cohesion, coherence, and signaling relationships between clauses and paragraphs. Discourse analysis takes an interdisciplinary approach drawing from linguistics, psychology, anthropology, and other fields to understand how language functions in different social settings and contexts.