New Harbinger is a leading publisher in the area of Acceptance and Commitment Therapy ( ACT ) .
Many of New Harbinger 's psychology books focus on the areas of ACT , CBT , and DBT .
New Harbinger is a leading New Harbinger in the area of ACT       ( ACT ) .
Many of New Harbinger 's psychology books focus on the areas of ACT , CBT , and DBT .