Richard B. Gaffin Books

"Doubts and denials swarm the biblical teaching that humans descend from an original pair, Adam and Eve. Some even claim that these doubts are compatible with Christian commitment. Richard Gaffin s...

By Faith Not by Sight

By Richard B. Gaffin Jr.

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Calvin and the Sabbath

By Richard B. Jr. Gaffin

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Are Miraculous Gifts for Today

By Stanley N. Gundry, Wayne A. Grudem, Zondervan Publishing Company

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The centrality of the Resurrection

By Richard B. Gaffin

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What place does the resurrection of Jesus Christ have in the soteriological teaching of the apostle Paul? The author, writing from within the Reformed tradition, explains in part one that a change...

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.