Sandra Glahn Books

Lethal Harvest

By Sandra Glahn, William Cutrer

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False Positive

By Sandra Glahn, William Cutrer M.D.

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After a woman is rushed to the ER in shock from massive blood loss, second-year medical resident Julien “Red” Richison becomes suspicious about the procedures being practiced at the nea...

When Empty Arms Become a Heavy Burden

By Sandra Glahn, William Cutrer

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Sexual Intimacy in Marriage

By Sandra Glahn, Michael Sytsma, William Cutrer

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Sanctified Sexuality

By Sandra Glahn, Gary C. Barnes

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Sumatra with the Seven Churches

By Crickett Keeth, Sandra Glahn

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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.