The product is a precalculus textbook titled “Precalculus” by authors Lial, Margaret L., Hornsby, E. John, and Schneider, David I. It was published by Addison-Wesley in 1997 and is geared towards adult and further education students studying mathematics. With a hardcover format and 924 pages + answer pages at the end. this textbook is designed to provide a comprehensive understanding of precalculus concepts in English language.