The article gives an overview of how public policies are used to solve public problems. Different countries have different policies, and the role of the government in making policies is changing. Social scientists have made models to study policy-making. The article looks at each model's strengths and weaknesses. The process of making public policies involves three main steps: making the policy, putting it into action, and evaluating its success. These steps are connected, and what happens in one step affects the others.