Annmarie Harris Books

The Little Engine that Could I Can Count

By AnnMarie Harris

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The Mamas and the Papa

By AnnMarie Harris

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When Mama unexpectedly has to work, Papa takes Marcos to the Mondays with Moms playgroup.

Countdown to Easter

By AnnMarie Harris

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A family experiences all kinds of treats on Easter morning.

Plucked duck!

By AnnMarie Harris

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When he begins to molt, Bill the duck is unwilling to patiently wait for new feathers to grow and, armed with a map and a secret password, sets out with Aldo the alligator to find a cure.

Jay Jay the Jet Plane

By Chris Nowell, Annmarie Harris

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Countdown to St Patrick s Day

By Annmarie Harris, Margeaux Lucas

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The Christmas Origami

By Annmarie Harris

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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.