The product is a signed first edition hardback book titled "Reacher: The Stories Behind The Stories" by Lee Child, published by Transworld Publishers Ltd. This non-fiction book, written in American English, delves into the stories behind the popular Reacher series of novels. With a publication year of 2025, this book provides insight into the inspiration and creation of the iconic Reacher character, making it a must-have for fans of Lee Child's work.