Assertiveness: The Relaxation and Stress Reduction Workbook Chapter Singles, Edition 6

Martha Davis, PhD, was a psychologist in the department of psychiatry at Kaiser Permanente Medical Center in Santa Clara, CA; where she practiced individual, couples, and group psychotherapy for almost thirty years prior to her retirement. She is coauthor of Thoughts and Feelings, The Relaxation and Stress Reduction Workbook, and Messages.

Elizabeth Robbins Eshelman, MSW, worked for the Kaiser Permanente Health Care Program for thirty-seven years. During her tenure, she was a clinical social worker, hospice director, researcher, health educator, and management development instructor and coach. She is retired and lives in Northern California.

Matthew McKay, PhD, is a professor at the Wright Institute in Berkeley, CA. He has authored and coauthored numerous books, including The Dialectical Behavior Therapy Skills Workbook, Self-Esteem, and Couple Skills, which have sold more than a million copies combined. He received his PhD in clinical psychology from the California School of Professional Psychology, and specializes in the cognitive behavioral treatment of anxiety and depression.