This document discusses genre analysis and key concepts related to understanding genres. It defines a discourse community as having common public goals, mechanisms for intercommunication, and participatory mechanisms to provide information according to the goals. Genre is defined as a grouping of texts that share communicative purposes within a discourse community. Professional genres are characterized by genre integrity, following established procedures, serving standardized communicative purposes, and involving skilled genre participants. The document outlines steps for conducting genre analysis, including collecting samples, analyzing macrostructure and language features, and provides examples of trends in genre analysis research.