Relaxation and Stress Reduction Workbook by Martha Davis, Elizabeth Robbins Eshelman, & Matthew McKay, 6th ed. (2008)
This is a classic text with easy to understand examples and exercises. Each chapter features a different method for relaxation and stress reduction, explains why the method works, and provides on-the-spot exercises you can do to apply that method when you feel stressed. The result is a comprehensive yet accessible workbook that will help you to curb stress and cultivate a more peaceful life.
Well to Do: A Guide to Take Charge, Set Goals, and Improve Your Health by Nicole Eull (2016)
For more detailed instructions and worksheets to improve your stress management, check out Chapter 9: Stress Management for You and the People Who Care About You or Chapter Chapter 12: Seven Secrets of Happy People in Well to Do: A Guide to Take Charge, Set Goals, and Improve Your Health.