The product is a textbook titled "Principles of Optics" written by authors Emil Wolf and Max Born. It covers the subject area of science, specifically focusing on the electromagnetic theory of propagation, interference, and diffraction of light. The textbook is published by Cambridge University Press and is presented in paperback format, making it accessible for students and individuals interested in the field of physics and optics. With its comprehensive content and well-known authors, this textbook serves as a valuable resource for understanding the principles of optics in depth.