This document discusses the differences between written and spoken discourse. It notes that written discourse can be referred back to, while spoken discourse must be understood immediately. Spoken discourse involves variations in speed, loudness, gestures, intonation, pauses and rhythm. Grammatically, spoken discourse contains fewer subordinate clauses and more active verbs. Lexically, spoken discourse uses more pronouns, repetitions, first person references and active verbs. Structurally, spoken discourse is more fragmented with simple sentences and coordination. Functionally, written discourse allows storage of information over time and space while spoken discourse is used primarily for interaction and relationships.