Newly reissued in trade paperback, from the author of the bestselling Man's Search for Meaning --the classic book in which he first laid out his revolutionary theory of logotherapy. Viktor E. Frankl is celebrated as the founder of logotherapy, a mode of psychotherapy based on the essential human need to search for meaning in life. Even in the degradation and misery of Nazi concentration camps, Frankl retained his belief that the most important freedom of all is the freedom to determine one's own spiritual well-being. After his liberation, he wrote The Doctor and the Soul , the first book in which he explained his method and his conviction that the fundamental human motivation is neither sex (as in Freud) nor the need to be appreciated by society (as in Adler), but the desire to live a purposeful life. This book was followed shortly after by his bestselling memoir, Man's Search for Meaning , in which he gave an account of his experiences during the Holocaust. Frankl's work has been described as the most important contributions in the field of psychotherapy since the days of Freud, Adler and Jung, and The Doctor and the Soul is essential to understanding it.