The product is a signed deluxe 1st edition hardcover book titled "Last Letter" by Rebecca Yarros. Published by Entangled Publishing, LLC, the book falls under the genres of fiction with themes of family life, contemporary romance, and military romance. The book is illustrated and signed by the author, Rebecca Yarros, making it a unique and collectible item for fans of her work. With 432 pages and measurements of 9.2 inches in length, 6.3 inches in width, and 1.2 inches in height, this autographed edition is a special addition to any book lover's collection.