The product is the book "C Programming Language" by Brian Kernighan and Dennis Ritchie, published by Pearson Education in 1988. This textbook covers the subject of programming languages, specifically focusing on the C programming language. It is a trade paperback format, measuring 9.2 inches in length, 7 inches in width, and 0.6 inches in height. The language of the text is English, and it is revised edition. The authors are renowned for their contributions to the development of the C programming language. With a weight of 16 ounces, this classic textbook is a valuable resource for students and professionals in the field of computer programming.