Malcolm Hillgartner is an actor, author, playwright, and professional narrator. Under the name Jahnna N. Malcolm, he and his wife, Jahnna Beecham, have written over one hundred books for young readers; their musicals have played in theaters across America. His audiobook credits include works by Dean Koontz, Nelson Algren, and William F. Buckley Jr.

David Sloan Wilson, PhD, is president of the Evolution Institute and SUNY distinguished professor of biology and anthropology at Binghamton University. He applies evolutionary theory to all aspects of humanity, in addition to the biological world. His books include Darwin s Cathedral, Evolution for Everyone: How Darwin s Theory Can Change the Way We Think About Our Lives, The Neighborhood Project, and Does Altruism Exist?