The product is a 4th edition annotated instructor's edition of the textbook "Precalculus: Functions and Graphs" published by Pearson Education in 2013. Authored by Mark Dugopolski, this hardcover book covers subjects such as functional analysis, pre-calculus, algebra, and trigonometry. With a total of 960 pages, this textbook is designed to serve as a comprehensive resource for students looking to deepen their understanding of mathematical concepts and enhance their problem-solving abilities.