Heather Whitestone McCallum Books

Ich hore mit dem Herzen

By Heather Whitestone McCallum

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Heavenly Crowns

By Heather Whitestone McCallum, Angela Elwell Hunt

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Let God Surprise You

By Heather Whitestone McCallum, Angela Elwell Hunt

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Listening with my heart

By Heather Whitestone McCallum

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The first physically handicapped woman to win the Miss America Pageant tells the story of her deafness, love of ballet, education, and challenge to fulfill her God-given potential.

Believing the promise

By Heather Whitestone McCallum

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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.