Dr. Mark Dugopolski was born in Menominee, Michigan. After getting a BS from Michigan State University, he taught high school in Illinois for 4 years. He earned an MS in math from Northern Illinois University at DeKalb. He then got a Ph.D. in the area of topology and an MS in statistics from the University of Illinois at Champaign―Urbana. Dr. Dugopolski taught maths at Southeastern Louisiana University in Hammond for over 25 years and now holds the rank of Professor Emeritus of Mathematics. He has been writing textbooks since 1988. In his spare time, he enjoys jogging, tennis, fishing, bicycling, gardening, kayaking, bridge, and motorcycling.