*Ego Is the Enemy* by Ryan Holiday is a self-help book that examines the role of ego in personal and professional failures. Holiday argues that ego often obstructs growth, success, and fulfillment by creating obstacles like arrogance, entitlement, and self-delusion. Drawing on historical and contemporary examples, the book provides strategies for overcoming ego-driven behaviors and cultivating humility, resilience, and self-awareness. It offers practical advice for managing ego to achieve greater success and maintain meaningful relationships.