Dan Gutman Books

It's Presidents' Day! And Mr. Macky, the reading specialist, actually expects A.J. and his friends to read stuff about the presidents! Not only that, but he lives in a log cabin and thinks he's Abr...

My Weird School 16: Ms. Coco Is Loco!

By Dan Gutman

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Thanks to the encouragement of Ms. Coco, the gifted and talented teacher, A.J. becomes a popular school poet during National Poetry Month.

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.

Dan Gutman Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?