The product is a signed paperback book titled "Secrets of the Negro Baseball League" by Dennis Biddle. Published in 2005 by Books, this nonfiction sports and recreation book delves into the history and stories of the Negro Baseball League. Authored by L G Martinez, the book offers a unique insight into the world of baseball, specifically focusing on the experiences and narratives of the players in the Negro Baseball League. With a total of 148 pages, this trade paperback is 10 inches long, 7 inches wide, and 0.3 inches in height, making it a valuable addition to any sports enthusiast's collection.