Gretz Susanna. Books

After Roger the pig visits the other families in his apartment building to find out who has to help with dinner, he realizes the value of taking his turn to set the dinner table.

Roger Takes Charge

By Gretz Susanna.

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Roger Loses His Marbles

By Gretz Susanna.

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Colours of Things Dinosaur

By Gretz Susanna., Althea.

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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.