David Ball (PhD Rice University) is a retired Professor of Chemistry at Cleveland State University. His specialty is physical chemistry, which he taught at the undergraduate and graduate levels. About 50 percent of David’s teaching was in general chemistry, including chemistry for non-science majors; general, organic, and biological chemistry; and general chemistry for science and engineering majors. In addition to several texts with FlatWorld, Professor Ball is also the author of two math review books for general and physical chemistry students, a physical chemistry textbook, and three books on spectroscopy. His publication list includes over 240 items, evenly distributed between research papers and articles of educational interest.

John W. Hill (Ph.D. University of Arkansas) was Professor Emeritus at the University of Wisconsin-River Falls. An organic chemist, he had more than 50 publications in refereed journals, most of which have an educational bent. John wrote or co-wrote several introductory level chemistry textbooks, all of which went into multiple editions. He also presented over 60 papers at national conferences, many relating to science education. John received several awards for outstanding teaching and had long been active in the American Chemical Society, both at local and national levels. 

Rhonda J. Scott (PhD University of California at Riverside) is Professor Emeritus of Chemistry at Southern Adventist University. Her background is in enzyme and peptide chemistry. Previous to her experience at SAU, Rhonda taught at Loma Linda University and the University of Wisconsin at River Falls. In the past ten years, she has presented at national American Chemical Society meetings and other workshops and conferences. She has also been very active in the development of teaching materials, reviewing or contributing to other textbooks and test banks.