The product is a hardcover book titled "Martin Luther: the Hero of the Reformation, 1483-1546" authored by Henry Eyster Jacobs. It was published in 1900 by The Knickerbocker Press in London. This first edition, illustrated book is a non-fiction piece focusing on theology, specifically highlighting the life and impact of Martin Luther during the Reformation period. The book is written in English and serves as a valuable collectible item for those interested in religious history and the works of Martin Luther.