Nancy Coffelt Books

Aunt Ant Leaves through the Leaves A Story with Homophones and Homonyms

By Nancy Coffelt

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A wonderful baby

By Nancy Coffelt

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Baby Rudy tries to find a gift for his mother that she will call wonderful, but instead he hears such words as "yikes" and "fiddlesticks" as various family members encourage him to keep trying.

The Big Eclipse Activity Book

By Elaine Cuyler Nancy Coffelt

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Dogs in space

By Nancy Coffelt

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Dogs build a clubhouse in space, where they vacuum, clean house, and take baths. Includes information about the construction and day-to-day activities of the International Space Station.

Good Night Sigmund Grade 2 Level Library

By Harcourt Brace

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Pug in a Truck

By Nancy Coffelt

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Fred Stays With Me

By Nancy Coffelt

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Pug in a Truck

By Nancy Coffelt

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Pug in a Truck

By Nancy Coffelt

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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.