The product is the 2009 NFPA 54: National Fuel Gas Code book, authored by NFPA and published by the National Fire Protection Association. This book provides information on safety standards for fuel gas systems, specifically focusing on the National Fuel Gas Code as outlined by NFPA ANSI Z223.1. Written in English, this book serves as a valuable educational resource for those in the gas industry looking to understand and comply with safety regulations.