Harker also serves as a professor of business administration and civil and environmental engineering. Here's what he's been reading:
鈥淲hat If? Serious Scientific Answers to Absurd Hypothetical Questions,鈥 by Randall Munroe
鈥淢odern Physics and Ancient Faith,鈥 by Stephen M. Barr
鈥淏arefoot to Billionaire: Reflections on a Life鈥檚 Work and a Promise to Cure Cancer,鈥 by Jon M. Huntsman Sr.