This third edition offers an updated primer to the theory, history, research, and practice of existential–humanistic (EH) therapy, which merges existential philosophy with humanistic psychotherapy. EH therapy blends the European heritage of self-inquiry, struggle, and responsibility with the American tradition of spontaneity, optimism, and practicality. This book helps therapists and trainees understand how to help people address critical life questions and attune to how clients relate to themselves and to others, appropriately reflecting back aspects of themselves that are evident but unnoticed. New to this edition are significant updates to research and theory, including the work of Otto Rank, an often-overlooked pioneer in EH therapy, and new concepts like existential unconsciousness and life-enhancing anxiety. The cultivation of presence as a central component of the therapeutic relationship is also emphasized.