The document discusses the concept of community, defining it as a social group with shared interests or characteristics, and emphasizes the importance of community action in fostering engagement and empowerment among members. It outlines the key roles and purposes of community action, such as improving local services and supporting marginalized groups, while also highlighting the dynamics of community change driven by social, cultural, and environmental factors. Additionally, it connects community action to applied social sciences, suggesting that understanding community dynamics is crucial for professionals in fields like education and social work.