Colleen LeMaire Books

I Have Two Homes

By Colleen LeMaire

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I have a stepmom

By Colleen LeMaire

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Despite the age old fairy tales, Stepmothers are far from evil. They love their family with all their heart and have an important yet challenging role to take on in today's blended household. This...

I Have Two Moms

By Marina Saumell, Colleen LeMaire

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I Have Two Dads

By Marina Saumell, Colleen LeMaire

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I Have to Stay Home

By Marina Saumell, Colleen LeMaire

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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.