Douglas Hofstadter is Distinguished College of Arts and Sciences Professor of Cognitive Science and Comparative Literature at Indiana University. His previous books include
Gö, Escher, Bach (which won the Pulitzer Prize for General Nonfiction in 1980) and
Fluid Concepts and Creative Analogies.
Emmanuel Sander is Professor of Cognitive and Developmental Psychology at the University of Paris (Saint-Denis), specializing in the study of analogy-making and categorization and their connections to education. Among his previous works is the book
Analogy, from the Naï to the Creative.