The product is a 1957 hardcover textbook titled "Solid Geometry" by George F. Porter, William W. Shirk, and William G. Shute. Published by American Book Company in the United States, this intermediate-level math textbook focuses on the subject of geometry. It features 280 illustrated pages, making it a valuable resource for high school students and adults seeking to further their education in the field of mathematics. Written in English, this textbook is a classic piece for those interested in mathematical concepts and principles. There are some markings in the book, as shown in photos. Please see photos for details, as they are an important piece of the description.