Social action is a method of social work used to mobilize masses and bring about structural changes in society. It aims to solve mass problems and improve living conditions through organized efforts like social legislation, reforms, and community organization. Skills needed for social action include relational, analytical, intervention, communication, and training abilities. Some challenges are empowering clients, managing groups, remaining unbiased, and balancing micro and macro issues. The overall goal of social action is to create a society with richer opportunities and a better life for all citizens.