The product is a hardcover book titled "Mother Teresa Come Be My Light: The Private Writings of the Saint of Calcutta." It contains the private writings of Mother Teresa of Calcutta, compiled by Brian Kolodiejchuk, providing insight into her thoughts and experiences. Published by Doubleday Religious Publishing Group, the book is intended for young adults and adults, with a focus on topics such as Christian ministry, inspiration, and religion. With 404 pages, the book offers a glimpse into the life and faith of one of the most revered figures in modern religious history.