Daniel P. Friedman is Professor of Computer Science in the School of Informatics, Computing, and Engineering at Indiana University and is the author of many books published by the MIT Press, including The Little Schemer and The Seasoned Schemer (with Matthias Felleisen); The Little Prover (with Carl Eastlund); and The Reasoned Schemer (with William E. Byrd, Oleg Kiselyov, and Jason Hemann).

William E. Byrd is a scientist in the Department of Computer Science at the University of Alabama at Birmingham.

Oleg Kiselyov is Assistant Professor in the Graduate School of Information Sciences at Tohoku University, Japan.