The product is a textbook titled "An Implementation Guide To Compiler Writing" published in 1982 by authors Jean-Paul Trenblay and Paul G. Sorenson. The textbook focuses on the subject of compilers and provides a comprehensive guide on how to write them. It is written in English and aims to assist readers in understanding the concepts and techniques involved in compiler writing. This textbook is a valuable resource for students and professionals interested in learning more about the process of creating compilers.