Cheryl Ryan Books

Red Are the Apples

By Marc Harshman, Cheryl Ryan

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Christmas Morning

By Cheryl Ryan, Cheryl Ryan Harshman

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Cumulative rhyme featuring traditions of Christmas, including snow, St. Nick, and a nutcracker.

Christmas Morning

By Jenny Mattheson, Cheryl Ryan

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Sally Arnold

By Cheryl Ryan, Cheryl Ryan Harshman

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A lonely girl befriends an elderly woman who collects things.

My Christmas Treasury

By Lucille Colandro, Jeni Bassett, Jenny Mattheson, Steven Kroll, Cheryl Ryan

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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.