Vicki V. May holds a BS in engineering from the University of Minnesota and MS and PhD degrees in engineering from Stanford University. She is a professor at the Thayer School of Engineering at Dartmouth College and is also involved in various outreach projects that bring the challenge of engineering to middle and high school students. Vicki was named Teacher of the Year for Dartmouth and Thayer in 2012 and Professor of the Year for the State of New Hampshire in 2013. Andrew Christensen is the illustrator of Canals and Dams: Investigate Feats of Engineering and Skyscrapers: Investigate Feats of Engineering for Nomad Press and is an art director at a hobby game company. He lives in Minneapolis, Minnesota.