The product is the “C Programming Language” textbook by Brian Kernighan and Dennis Ritchie, published by Pearson Education in 1988. It is a trade paperback format book with 288 pages, focusing on the programming language C. It is 9.1 inches in length, 6.9 inches in width, and 0.6 inches in height, and weighs 16.8 ounces. The book is in English and features revised content.