VINCENT DUNN, a Firehouse® contributing editor, is a 42-year veteran of the FDNY and a deputy chief (ret.), serving as a division commander for midtown Manhattan. He is the author of the best-selling text and DVDs “Collapse of Burning Buildings” and textbooks “Safety and Survival on the Fireground,” “Command and Control of Fires and Emergencies” and “Strategy of Firefighting – How to Extinguish Fires.” His most recent book is titled “Building Construction: The Firefighter’s Battlespace,” and book proceeds will help support the FDNY and FDNY Foundation. Dunn has a master’s degree in urban studies, a bachelor’s degree in sociology and an associate’s degree in fire administration from Queens College, City University of New York.