The product is a trade paperback book titled "Story of Kullervo" by Verlyn Flieger and J. R. R. Tolkien, published by HarperCollins in 2017. This literary work falls under the genres of literary criticism and fiction, with a focus on fantasy, science fiction, fairy tales, folk tales, legends, and mythology. The book features illustrations and is written in English, making it a captivating read for fans of Tolkien's works and those interested in exploring the creative world of fantasy and adventure.