by Dr. Jack Birnbaum. When Cry Anger - A Cure For Depression was written, our world was "too nice," suppressing our anger into self-blaming depression. Now the pendulum has swung to extremes, excessive anger; road rage, work rage, spousal, elder and child abuse, random violence and terrorism. We can use this explosive anger energy effectively; convert it to positive anger. Birnbaum's Boiler Theory, combined with Cognitive Therapy and techniques from Mental Imagery, create easy to learn, simple to use skills - "Power Tools For the Mind."