Peter Kreeft Books

The Ever-Illuminating Wisdom of St. Thomas Aquinas

By Marie George, Peter Kreeft, Ralph M. McInerny, Russell Hittinger, John Haas, Ronald McArthur

Average: 0.00, 0 Ratings

"In this volume, six distinguished Thomistic philosophers present their reflections on the unique insights of St. Thomas on philosophy and life, faith and reason, nature and grace, moral relativism...

Prayer for beginners

By Peter Kreeft

Average: 0.00, 0 Ratings

Catholic Christianity

By Peter Kreeft

Average: 0.00, 0 Ratings

Three approaches to abortion

By Peter Kreeft

Average: 0.00, 0 Ratings

Philosophy 101 by Socrates

By Peter Kreeft

Average: 0.00, 0 Ratings

Socrates Meets Machiavelli

By Peter Kreeft

Average: 0.00, 0 Ratings

Socrates Meets Marx

By Peter Kreeft

Average: 0.00, 0 Ratings

Socrates Meets Sartre

By Peter Kreeft

Average: 0.00, 0 Ratings

C.S. Lewis a critical essay

By Peter Kreeft

Average: 0.00, 0 Ratings

Ethics

Average: 0.00, 0 Ratings

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.