Answer Set Programming (ASP) is a form of declarative programming used primarily in artificial intelligence and knowledge representation. It allows users to define problems in terms of rules and facts, enabling the system to derive solutions, known as "answer sets," that satisfy these conditions. ASP is particularly useful for solving complex problems involving reasoning and constraints, such as planning, scheduling, and diagnosis. By focusing on what is true rather than how to compute it, ASP provides a high-level approach to problem-solving, making it easier to express and manipulate knowledge.