Mary Lu Warstler Books

Great grandpa s Diary

By Mary Lu Warstler

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Three for the Third Day

By Mary Lu Warstler

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Services for Special Days

By Mary Lu Warstler

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Cats in the Belfry

By Mary Lu Warstler

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Six feet over

By Mary Lu Warstler

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Laura and Steve are newlyweds and leave on their honeymoon about the time construction of a bridge over Gopher Creek begins. There is trouble with the construction project, and a body is found hang...

Six Feet Over

By Mary Lu Warstler

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Escape from Richmond

By Mary Lu Warstler

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"December 2, 1859 John Brown is hanged for treason. The mayor of Richmond wants Will Brunner, minister and physician, and his friends in the Richmond Volunteers. They refuse. Will and his friends a...

Miracle in the Bethlethem Inn

By Mary Lou Warstler, Mary Lu Warstler

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Love and Miracles

By Mary L. Warstler

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Before the Dawn

By Mary Lu Warstler

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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.