King's Theory of Goal Attainment focuses on nurse-patient interactions and transactions to achieve mutually agreed upon goals. The theory views humans as personal systems that interact within interpersonal and social systems. Key concepts include perception, communication, stress, roles, and growth. Nurses use the theory's transaction process to set goals with patients through assessing, planning, implementing, and evaluating care. The theory aims to help patients maintain health or cope with illness. It has influenced nursing research and practice for decades by providing a framework for the nurse-patient relationship and nursing process.