This document discusses different perspectives on the concept of community from various academic disciplines. It outlines perspectives from social science, which sees community as a group unified by common characteristics; from community-based studies, which view community as a setting, target, resource, or agent for interventions; and from ecology, which defines community as interacting species within a space. It also discusses classifications of community based on location, demographics, services, land use, jobs, and social dynamics. Finally, it outlines four types of community.