About our authors Mike Sullivan recently retired as Professor of Mathematics at Chicago State University having taught there for more than 30 years. He received his PhD in mathematics from Illinois Institute of Technology. He is a native of Chicago's South Side and currently resides in Oak Lawn Illinois. Mike has 4 children; the 2 oldest have degrees in mathematics and assisted in proofing checking examples and exercises and writing solutions manuals for this project. His son Mike Sullivan III co-authored the Sullivan Graphing with Data Analysis series as well as this series. Mike has authored or co-authored more than 10 books. He owns a travel agency and splits his time between a condo in Naples Florida and a home in Oak Lawn where he enjoys gardening. Mike Sullivan III is a professor of mathematics at Joliet Junior College. He holds graduate degrees from DePaul University in both mathematics and economics. Mike is an author or co-author on more than 20 books including a statistics book and a developmental mathematics series. Mike is the father of 3 children and an avid golfer who tries to spend as much of his limited free time as possible on the golf course. . Language: English