Algebra For Dummies, Trigonometry For Dummies, Algebra Workbook For Dummies, Trigonometry Workbook For Dummies, Algebra II For Dummies, Algebra I CliffsStudySolver, and Algebra II CliffsStudySolver are all written by Mary Jane Sterling. For almost 25 years, she has been a professor at Bradley University in Peoria, Illinois. Mary Jane enjoys working with her students both in and out of the classroom, and she volunteers with the Kiwanis Family in her spare time.