The 5th Edition of Principles of Forensic Toxicology, edited by FireTox team member, Dr. Barry Levine, is now available. This book is a daily resource in the FireTox office and features a chapter on Carbon Monoxide and Cyanide poisoning recently revised by FireTox Technical Director, Dr. Jamie McAllister and co-authors, Drs. Levine and Kunsman. FireTox is proud to have been a part of this wonderful compilation of work.