J. Sean Hubar, DMD, MS, is a professor of oral and maxillofacial radiology in the Department of Diagnostic Sciences at the Louisiana State University (LSU) School of Dentistry in New Orleans. He is the author of the radiology textbook—Fundamentals of Oral and Maxillofacial Radiology—a useful handbook for dental hygienists. Published by Wiley Blackwell, the book answers patient questions about the hazards of X-rays, discusses how to eliminate intraoral and extraoral technique errors, and includes a review of basic radiographic anatomy and pathology and a glossary of definitions of everyday terminology.