Dr. Linda Elder is an educational psychologist and a prominent authority on critical thinking. She is President of the Foundation for Critical Thinking and Executive Director of the Center for Critical Thinking. Dr. Elder has taught psychology and critical thinking at the college level and has given presentations to more than 20,000 educators at all levels. She has co-authored four books, including Critical Thinking: Tools for Taking Charge of Your Learning and Your Life, Critical Thinking: Tools for Taking Charge of Your Professional and Personal Life and Twenty-Five Days to Better Thinking and Better Living. She has co-authored eighteen thinker's guides on critical thinking and co-authors a quarterly column on critical thinking in the Journal of Developmental Education.Dr. Elder has also developed an original stage theory of critical thinking development. Concerned with understanding and illuminating the relationship between thinking and affect, and the barriers to critical thinking, Dr. Elder has placed these issues at the center of her thinking and her work. For more information on Dr. Elder and the work of the Foundation for Critical Thinking visit www.criticalthinking.org