Carol Gnojewski Books

Martin Luther King, Jr. Day

By Carol Gnojewski

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Presents the history and meaning behind the observance of Martin Luther King, Jr., Day.

Cinco De Mayo

By Carol Gnojewski

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St. Patrick s Day Crafts

By Carol Gnojewski

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Earth Day Crafts

By Carol Gnojewski

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African American crafts kids can do

By Carol Gnojewski

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Learn more about the African-American culture with these ten easy-to-do crafts. Also, while you do these crafts read about famous African Americans. Some of the exciting crafts included are a Star...

American Indian crafts kids can do!

By Carol Gnojewski

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El dia de los muertos

By Carol Gnojewski

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Presents an introduction to the Mexican holiday of Day of the Dead, providing information on its history, traditions, and how the holiday is celebrated today.

El dia de Martin Luther King, Jr.

By Carol Gnojewski

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Fun St. Patrick s Day Crafts

By Carol Gnojewski

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Kwanzaa

By Carol Gnojewski, Joanna Ponto

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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.