Justin Roberts Books

Hardly anyone noticed young Sally McCabe.She was the smallest girl in the smallest grade. But Sally notices everything—from the twenty-seven keys on the janitor’s ring to the bullying happening on...

Great Henry Hopendower

By Deborah Hocking, Justin Roberts

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I'll Be Your Polar Bear

By Chuck Groenink, Justin Roberts

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From 4-time Grammy nominee Justin Roberts comes a heartfelt picture book about the lengths a father will go to in order to comfort and protect his child.Because you and I,we’re two of a pair: you’r...

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.