Rebecca Grudzina Books

Benchmark the Greenville Gazette

By Rebecca Grudzina

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Hercules and the stables

By Rebecca Grudzina

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"Hercules wants some of the king's cows. The king tells Hercules he has to clean the huge stables to earn them. How will Hercules do it? Read to find out"--Page 4 of cover.

Popular themes in American fiction

By Rebecca Grudzina

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Opinions about the Trail of Tears

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How to Make Three Sandwiches Teacher s Guide with Common Core Indicators

By Betty Grudzina Edwards, Rebecca Grudzina

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Baby Bumblebee

By Rebecca Grudzina

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Juan Manzano

By Rebecca Grudzina, Benchmark Education Co. LLC Staff

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From Egg to Butterfly

By Rebecca Grudzina, Kelly Grudzina Lewis

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Milkmaid and Her Pail 6 Pack

By A. Corazon Abierto, Rebecca Grudzina

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Owl and the Raven 6 Pack

By Rebecca Grudzina, Manuela Adreani

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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.