Robert A. Harris (PhD, University of California, Riverside) taught English at college and university level for more than 25 years. He has also worked in the area of instructional design. Dr. Harris' other books include The Plagiarism Handbook and Writing with Clarity and Style: A Guide to Rhetorical Devices for Contemporary Writers.

Christie J. Curtis (PhD, Interim Dean, Graduate Studies Chair, Professor, Biola University, La Mirada, California) has been teaching writing and grammar skills for more than 25 years. She currently chairs the committees of many graduate students as they seek to complete their theses. Dr. Curtis is the coauthor of the Grammar and Writing Series (Grades 3-8), which includes student texts (writing and grammar), student workbooks (writing and grammar), teacher's guides, and online resources.