Philip J. Pratt is Professor Emeritus of Mathematics and Computer Science at Grand Valley State University, where he taught for 33 years. His teaching interests include database management, systems analysis, complex analysis, and discrete mathematics. He has authored over 75 textbooks, including coauthoring three levels of Microsoft Office Access 2013 books for the Shelly Cashman Series and A Guide to SQL.
Gary B. Shelly wrote and published his first computer education textbook in 1969. More than twenty million copies of Shelly Cashman Series' textbooks have been sold. Gary and a talented group of contributing authors have produced books on computer programming, computer concepts, and application software that are the leading textbooks in the computer technology market today. Gary has hosted the annual Shelly Cashman Institute, a week-long training event focusing on the latest topics in technology, for the past 34 years.