Narcissistic Personality Disorder (NPD) is a mental health condition characterized by an inflated sense of self-importance and a deep need for admiration. Individuals with NPD often believe they are superior to others and may lack empathy, making it difficult for them to recognize or care about the feelings of those around them. People with NPD may engage in manipulative behaviors to maintain their self-image and can become easily offended or angry when criticized. Treatment typically involves psychotherapy, which can help individuals develop healthier self-esteem and improve their relationships with others.