This Classic Edition of On the Theory and Therapy of Mental Disorders: An Introduction to Logotherapy and Existential Analysis sees Viktor E. Frankl, bestselling author and founder of logotherapy, introduce his key theories and apply them to work with patients exhibiting symptoms of neurosis.

Viktor E. Frankl was professor of neurology and psychiatry at the University of Vienna Medical School until his death in 1997. He was the founder of what has come to be called the Third Viennese School of Psychotherapy (after Freud's psychoanalysis and Adler's individual psychology)-the school of logotherapy.