Mark Eastburn has taught Spanish and science (biology, chemistry, and research) at the elementary and high school levels in Princeton, NJ over the past two decades. Prior to his career as a teacher, he served in the U.S. Peace Corps as an agroforestry volunteer in Panama, and conducted his graduate research on plant-eating spiders throughout Central America. When not teaching (or grading), Mark enjoys writing, photography, and taking care of his "bug" collection, which includes insects, spiders, and isopods. While working as an elementary school science teacher, Mark coordinated a statewide student effort to recognize the bog turtle as New Jersey's state reptile, which gained official status in June 2018. In addition to his enhanced e-Books, Mark has also written a children's novel, Earning My Spots, which was published in 2016.