The product is the "Autodesk Revit 2020 Architecture Fundamentals" textbook authored by Ascent and published by SDC Publications in 2019. This textbook is in trade paperback format with 600 pages, providing a comprehensive guide to Autodesk Revit software for architecture students and professionals. It covers fundamental concepts and skills related to using Autodesk Revit for architectural design and documentation in the English language. The book is designed to help users understand the basics of Autodesk Revit 2020 and enhance their proficiency in architectural modeling and drafting.