Stephen Kaplan is emeritus professor of psychology and of computer science and engineering at the University of Michigan. With Rachel Kaplan he co-authored Cognition and Environment: Functioning in an Uncertain World and The Experience of Nature: A Psychological Perspective.

Rachel Kaplan was the Samuel T. Dana Professor of Environment and Behavior at the School of Natural Resources and Environment at the University of Michigan. She is the co-author of With People in Mind: Design and Management of Everyday Nature (with Stephen Kaplan and Robert L. Ryan) and co-editor of Fostering Reasonableness: Supportive Environments for Bringing Out Our Best (with Avik Basu).