A set of verbal and non-verbal skills and behaviors that people use to interact effectively and constructively with others, whether in their daily, professional or social lives. These skills are the foundation of building successful human relationships because they help people express their thoughts, feelings, and information clearly, understand the needs and motivations of others, and build relationships based on respect, trust, and cooperation. From a modern perspective, these skills are part of emotional intelligence because they are related to self-awareness, emotion regulation, and the ability to understand others and build strong relationships with them. Studies in psychology, sociology, and management have shown that advanced interpersonal skills improve the quality of interpersonal relationships, increase teamwork, reduce stress and conflicts, and increase personal and professional satisfaction. In short, soft skills are not just linguistic or social techniques; art and science, which evolve with practice and experience, are the most important components of human success in various aspects of life.