Logotherapy and Existential Analysis has been internationally recognized for decades as an empirically supported humanistic school of psychotherapy. Evidence for the growing significance of logotherapy includes institutes, societies and professorships in many countries of the world, as well as conferences and publications. On the Theory and Therapy of Neuroses: An Introduction to Logotherapy and Existential Analysis, the translation of Viktor Frankl's Theorie und Therapie der Neurosen by James M. DuBois, will allow for the first time English-only readers to experience this essential text on logotherapy.