Nick Jenkins is professor of renewable energy at Cardiff University. Before moving to academia in 1992, his career included fourteen years of industrial experience, five years of which were spent in developing countries. He is the author of Energy Systems: A Very Short Introduction.
Chris Sorensen is a veteran audiobook narrator with over 160 titles to his name. He has received three AudioFile Earphones Awards, and his recording of Sent by Margaret Peterson Haddix was selected as one of the Best Audiobooks of 2010 by AudioFile magazine. He is a member of SAG-AFTRA and the APA.