An inside look to a healthier mind. Especially useful if you have stress, bipolar disorder, ADHD, anger, or grief. 
To be really functional, and to be the best that we can be we really need to take care of our minds. When we have a healthy mind the other facets of the system will follow. The physical, emotional, and spiritual sides of life will also be healthy. The mind is the center of everything. It is the hub where everything meets and confers. A book worth buying.