Dr. Linda Elder is an educational psychologist and internationally recognized authority on critical thinking. She has been president of the Foundation for Critical Thinking for 25 years, and has coauthored four books on critical thinking, as well as all 23 titles found in the Thinker's Guide Library.

Dr. Meg Gorzycki is a consultant at the Center for Teaching and Faculty Development at San Francisco State University. She has taught history, psychology, and ethics and media at secondary and junior college levels. Dr. Gorzycki's research interests include ethical literacy, the pedagogy of higher education, and the history of the Cold War.

Dr. Richard Paul was a foremost advocate for critical thinking and, through his work and legacy, remains a distinguished thinker in the field. In 1980, Paul founded the Center for Critical Thinking, followed by the Foundation for Critical Thinking; Paul authored numerous articles and books on critical thinking.