Margery Cuyler Books

Freckles and Jane

By Margery Cuyler, Leslie H. Morrill

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Guinea pigs add up

By Margery Cuyler

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Mr. Gilbert brings in a guinea pig as a class pet, but it looks so lonely he brings another, and before long the class is getting an unexpected lesson in addition--and a very full cage.

Guinea pigs add up!

By Margery Cuyler

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Mr. Gilbert brings in a guinea pig as a class pet, but it looks so lonely he brings another, and before long the class is getting an unexpected lesson in addition--and a very full cage.

Invisible in the Third Grade

By Margery Cuyler

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Skeleton for Dinner

By Will Terry, Margery Cuyler

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That s Good That s Bad In Washington DC

By Margery Cuyler

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The little school bus

By Margery Cuyler

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A happy little school bus and Driver Bob wake up early to pick up children, drop them off at school, then head to the garage for some minor repairs.

Weird Wolf Redfeather Book

By Margery Cuyler

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Christmas Snowman

By Margery Cuyler, Johanna Westerman

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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.