**Michael Sullivan** is Professor Emeritus in the Department of Mathematics and Computer Science at Chicago Sate University where he taught for 35 years before retiring a few years ago. Dr. Sullivan is a member of the American Mathematical Society and the Mathematical Association of America. He is a past President of the text and Academic Authors Association and represents that organization on the Authors Coalition of America. Mike has been writing textbooks for over 30 years. He currently has 15 books in print, including 3 with John Wiley & Sons. He has four children : Kathleen, who teaches college mathematics, Michael, who teaches college mathematics; Dan, who is a sales representative for a college textbook publishing company, and Colleen, who teaches middle-school mathematics. Eleven grandchildren round out the family.

**Abe Mizrahi** enjoyed an active career in mathematics before his untimely passing in 2001. He received his doctorate in mathematics from the Illinois Institute of Technology in 1965, and was a Professor of Mathematics at Indiana University Northwest. Dr. Mizrahi was a member of the Mathematics Association of America, and wrote articles that explored topics in math education and the applications of mathematics to economics. Dr. Mizrahi served on many CUPM committees and was a panel member on the CUPM Committee on Applied Mathematics in the Undergraduate Curriculum. Dr. Mizrahi was the recipient of many NSF grants and served as a consultant to a number of businesses and federal agencies. Although the tenth edition no longer bears his name on the cover, his influence remains.