Eileen Heffernan Books

Portrays the lives of fifty-seven Christian saints from the time of Jesus through the twentieth century, and suggests ways to apply what each stood for to one's own life.

57 stories of saints

By Eileen Heffernan

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Portrays the lives of fifty-seven Christian saints from the time of Jesus through the twentieth century, and suggests ways to apply what each stood for to one's own life.

Jesus brings us life

By Eileen Heffernan

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The little people's Bible

By Eileen Heffernan

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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.