Ethan T. Berlin Books

I Am Not a Dog Toy

By Ethan T. Berlin

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How to Draw a Happy Cat

By Ethan T. Berlin

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Big Bunch of Nonsense

By Ethan T. Berlin, The Journal Of Nonsense, Jake Crowe

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Hugely Wugely Spider

By Ethan T. Berlin

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A toy bear insists that he's a kid's toy--not a dog toy--in this story that shows that a true friendship is always one that goes in both directions.A fun bear, who wears a vest with many pockets, i...

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.