This document discusses variation analysis, which examines patterns in alternative ways of saying the same thing in a language. Variationists assume that social context influences language use. They study how speech varies based on social and linguistic factors by observing language use in different social settings. The document contrasts the vernacular, which is language used with little attention to style, with more prestigious forms that may be used when speech is being observed or judged. It provides examples of linguistic variation in words, pronunciations, and syntax. The end discusses narrative and list as different text types that have distinct information structures related to temporal sequencing, descriptions, and evaluations.