This document discusses ways for communities to get involved in local planning decisions. It provides three main reasons why involvement is important: to enhance democracy, achieve community goals, and utilize local knowledge. However, lack of awareness, resources, and expertise can act as barriers. Planning Aid helps overcome these barriers by providing free and independent planning advice to community groups. The document also outlines the different types of planning decisions, such as development plans and permission applications, and how to effectively influence these decisions by making clear, concise, and evidence-based arguments.