This document discusses the management of sales territories. It defines a sales territory as a group of present and potential customers assigned to a salesperson, team, branch, dealer, or other marketing organization for a given period of time. Managing sales territories effectively has several advantages, such as ensuring better market coverage, utilizing the salesforce efficiently, controlling costs, and optimizing salespeople's time. The document outlines factors that influence modifying territories and different shapes territories can take. It also discusses strategic planning matrices to analyze opportunity levels and allocate resources accordingly.