Ellen Reymes Books

You're invited to Mary-Kate & Ashley's Christmas party

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Join Mary-Kate and Ashley Olsen and their friends for a Christmas party in the high mountains of Vail, Colorado where they ski, snowmobile, and go sledding.

Too Many Teddies

By Ellen Reymes, Ellen Reynes

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"What luck! Michelle finds a Web site that's giving away free teddy bears. And she quickly orders a whole bunch for herself and her classmates. But Michelle soon learns that luck had nothing to...

Too Many Teddies Full House Michelle

By Ellen Reymes, Judy Katchke

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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.