Aaron T. Beck, the founder of modern cognitive therapy, in his book Cognitive Therapy and the Emotional Disorders, provides a clear and concise portrait of what cognitive therapy is, where and when it can be useful, and its relationship to other forms of psychotherapy. Devotion to common sense is the common vein that runs throughout the book. This lends credibility and coherenceto Beck's argument in support of cognitive therapy as the most appropriate form of psychotherapy in dealing with pure emotional disorders.