Grant R. Jeffrey Books

Triumphant Return

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Triumphant Return is an upbeat, positive proclamation of the tremendous prophecies about the Second Coming and the awesome transformation of humanity that will unfold when Christ ushers in the King...

Unveiling Mysteries of the Bible

By Grant R. Jeffrey

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The Signature of God

By Grant R. Jeffrey

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Creation

By Grant R. Jeffrey

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This book explores the powerful new evidence discovered in the last few decades by scientific research in astronomy, the nature of the atom and DNA. These discoveries have caused a revolution in th...

Finding Financial Freedom

By Grant R. Jeffrey

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The New Temple and the Second Coming

By Grant R. Jeffrey

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An array of new archaeological finds and revealing discoveries in the ancient city hidden beneath Jerusalem lead to a stunning conclusion: The generation alive today will witness the return of Chri...

Foreshocks of Antichrist

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The Handwriting of God

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The New Temple and the Second Coming

By Grant R. Jeffrey

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Harmaguedon rendez vous avec le destin

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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.