The product is a vintage textbook titled "Application of Solar Energy" published in 1975 by UAH Press. Written in English, this advanced-level textbook covers the subject area of science and technology with a focus on solar science. Authored by S.T. Wu, W.E. Whitacre, D.L. Christensen, and R.R. Head, the hardcover book provides in-depth information on the application of solar energy, making it a valuable resource for those interested in the field.