Jason DeRouchie Books

40 Questions about Biblical Theology

By Jason DeRouchie, Andrew Naselli, Oren Martin

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A call to covenant love

By Jason DeRouchie

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What the Old Testament authors really cared about

By Jason Shane DeRouchie

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"This manageable survey provides a Christian interpretation of what the Old Testament authors really cared about. ... following the arrangement of the Jewish canon, this survey attempts to present...

ESV Expository Commentary Volume 7

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Delighting in the Old Testament

By Stephen J. Wellum, Jason DeRouchie

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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.