Len's Star Rating: 10 out of 10. An excellent book on developing positive habits and eliminating negative ones.

Len's Star Rating: 8 out of 10. A great workbook on acceptance and commitment strategies and exposure and response prevention for teens with OCD.

Len's Star Rating: 10 out of 10. An excellent, engaging self-help workbook on research-proven strategies for combatting OCD.

Len's Star Rating: 7 out of 10. A good workbook on behavioral activation strategies for combatting depression.

Len's Star Rating: 7 out of 10. A good book on behavioral activation and other life strategies for dealing with depression.

Len's Star Rating: 5 out of 10. A solid book on behavioral strategies for parents.

Len's Star Rating: 4 out of 10. A dated yet solid book on strategies and exercises for improving depression that includes an excellent chapter on behavioral activation strategies.

Len's Star Rating: 9 out of 10. An excellent, engaging book on the effects of randomness and rare events on financial systems and life in general.

Len's Star Rating: 9 out of 10. An excellent book on using CBT skills to identify and correct thought patterns that lead to depression and anxiety.

Len's Star Rating: 7 out of 10. A good book on providing validation to enhance relationships.

Len's Star Rating: 9 out of 10. An exceptional book on identifying and correcting thought patterns that lead to depression and anxiety.

Len's Star Rating: 6 out of 10. A solid book on improving depressive symptoms through physical exercise.

Len's Star Rating: 8 out of 10. An excellent parenting book with a primary focus on behavioral approaches, such as time-outs, in parenting children age 12 and younger.

Len's Star Rating: 10 out of 10. The best self-help book on Cognitive Behavioral Therapy (CBT) for adults.