David F. Wells Books

God the evangelist

By David F. Wells

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Turning to God

By David F. Wells

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Reformed Theology in America

By David F. Wells

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"What does it mean to be reformed? Reformed Theology in America answers this question by tracing three diverse strands of American Reformed thought: Princeton theology, Dutch Reformed theology, and...

The Evangelicals

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Turning to God

By David F. Wells

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Dutch Reformed theology

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The Princeton theology

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Reformed Theology in America

By David F. Wells

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God the evangelist

By David F. Wells

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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.