Personal Growth: 

• The Language of Letting Go, Melody Beattie 
• Necessary Endings, Henry Cloud

Parenting:

• Boundaries with Teens, John Townsend
  
• Untangled : Guiding Teenage Girls Through the Seven Transitions into Adulthood, Lisa Demour, PH.D.
  
• Parenting Teens With Love And Logic : Preparing Adolescents For Responsible Adulthood, Foster W. Cline

Relationships:

• Boundaries, John Townsend