The product is a textbook titled "From Irenaeus to Grotius: A Sourcebook in Christian Political Thought" by Oliver O'Donovan. Published by Eerdmans Publishing Company in 1999, this trade paperback features 858 pages of text exploring Christian political thought from ancient to modern times. Covering a range of subjects related to Christianity, politics, philosophy, and literature, this book provides a comprehensive look at the intersection of religion and political theory in a historical context. With a focus on the development of Christian political thought from the early church to the modern era, this textbook is a valuable resource for students and scholars interested in the history and philosophy of Christianity.