Dr. Ron Larson is a professor of mathematics at The Pennsylvania State University, where he has taught since 1970. He received his Ph.D. in mathematics from the University of Colorado and is considered the pioneer of using multimedia to enhance the learning of mathematics, having authored over 30 software titles since 1990. Dr. Larson conducts numerous seminars and in-service workshops for math educators around the country about using computer technology as an instructional tool and motivational aid. He is the recipient of the 2013 Text and Academic Authors Association Award for CALCULUS, the 2012 William Holmes McGuffey Longevity Award for CALCULUS: AN APPLIED APPROACH, the 2011 William Holmes McGuffey Longevity Award for PRECALCULUS: REAL MATHEMATICS, REAL PEOPLE, and the 1996 Text and Academic Authors Association TEXTY Award for INTERACTIVE CALCULUS (a complete text on CD-ROM that was the first mainstream college textbook to be offered on the Internet). Dr. Larson authors numerous textbooks including the best-selling Calculus series published by Cengage Learning.Judy Hails has taught in the criminal justice field for over 40 years. She has authored five textbooks on criminal evidence, criminal law, and criminal procedure as well as contributing to anthologies and writing numerous journal articles. She received the Distinguished Faculty Teaching Award in 1998. She has been a visiting professor at the China Criminal Police College and Illinois State University, and an adjunct professor at John Jay College of Criminal Justice in New York. She is a former sergeant with the Los Angeles County Sheriff's Department. Her education includes: B.S. in mathematics from Loma Linda University, M.S. in criminology from CSU-Long Beach, J.D. from Southwestern University School of Law, and LL.M. in criminal justice from New York University School of Law.