Paul Shapiro has been involved with the fire service since 1981 and served as an engineer with the Las Vegas (NV) Fire & Rescue for 28 years until his retirement. He is a certified fire instructor III for Nevada and has served on the faculty of many fire academies throughout the United States. Shapiro authored Layin’ The Big Lines , a book on large flow water delivery. He specializes in the research, development, and training on large flow water delivery systems and fire stream management. His extensive research and outcomes of large-diameter hose, both as supply and discharge lines, has been published frequently in fire service trade magazines.