Joanna Jarc Robinson Books

Andrew and Allen learn about adverbs

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"Andrew and Allen learn about adverbs while on a field trip to the zoo. Concepts include: basic definition and usage of adverbs; comparative and superlative adverbs; recognizing adverbs; and spelli...

Phillip and Penny learn about pronouns

By Joanna Jarc Robinson

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"Phillip and Penny learn about pronouns while picking out new pet hamsters at the pet shop. Concepts include: basic definition and usage of pronouns; demonstrative pronouns; first, second; and thir...

Farm Animals (Know-It-Alls)

By Joanna Jarc Robinson, Cindy Ilt Kiernicki

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Teaches young children facts about various farm animals. Includes an audio CD.

Princess Ballerinas

By Joanna Jarc Robinson, Megan Meyers

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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.