Dr. Keith Folse is a Professor of TESOL at the University of Central Florida. He is the author of 57 textbooks on a variety of subjects from grammar to vocabulary to composition, including five best-selling books in the Great Writing series by National Geographic Learning. Tison Pugh is professor of English at the University of Central Florida. In addition to the Great Writing series, he has published many books and edited volumes on writing, reading, and pedagogy.