“Existentialism and Human Emotions” (1957) is a philosophical work by Jean-Paul Sartre, a leading exponent of existentialism. In this concise and accessible book, Sartre explores the fundamental principles of existentialist thought, emphasizing individual freedom, choice, and responsibility. He argues that human existence is characterized by “existence precedes essence,” meaning that individuals create their own essence through choices, rather than being determined by inherent nature or external forces. Sartre examines the emotional implications of this philosophy, including anxiety, despair, and anguish, which arise from acknowledging the weight of freedom and the uncertainty of life. Through concepts like “bad faith” and “authenticity,” Sartre encourages readers to embrace their freedom, take responsibility for their choices, and create their own meaning in life, despite its inherent absurdity.