W. Terry Whalin Books

Billy Graham Library Edition

By Terry W. Whalin

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Sojourner Truth

By Terry Whalin

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Presents the life and times of the woman born into slavery who became a well-known abolitionist and crusader for the rights of African Americans.

Samuel Morris

By W. Terry Whalin, Terry Whalin

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A biography of the son of a Kru village chief who escaped from his cruel captors in Liberia and who was eventually led by the Holy Spirit to make his way to the United States, where he in turn led...

Joshua and the Jericho Project

By Terry Whalin

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Daniel and the Babylon Adventure Sticker Story Adventures

By W. Terry Whalin, Terry Whalin

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Jesus and His Miracles Sticker Story Adventures

By Terry Whalin

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Lessons from the pit

By Joseph Leininger

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Prayers For My Son Pocket Prayer Companion Series 1

By Terry Whalin

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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.