The document discusses concepts related to local government boundaries and land use including redistricting, zoning, annexation, and incorporation. It defines each concept and provides brief explanations of why they are used. Redistricting redraws legislative district boundaries based on population changes. Zoning establishes rules for different types of land use like residential, commercial, and industrial. Annexation enlarges cities by adding surrounding land. Incorporation establishes a new city within a state which requires approval from the state legislature.