mindfulness BOOKS & workbooks:
books:

Sitting Still Like a Frog: Mindfulness Exercises for Kids (and Their Parents)
By Eline Snel

Mind Over Basketball: Coach Yourself to Handle Stress
Jane Weierbach and Elizabeth Phillips-Hershey
WORKBOOKS:

A Still Quiet Place for Teens: A Mindfulness Workbook to Ease Stress and Difficult Emotions
By Amy Saltzmann

Mindfulness for Teen Anxiety: A Workbook for Overcoming Anxiety at Home, at School and Everywhere Else
Christopher Willard

The Stress Reduction Workbook for Teens: Mindfulness Skills to Help You Deal with Stress
Gina M. Biegel