Heinz Janisch Books

Problems arise for a fashion-forward bear who just can't find the right clothes to suit his personal style and flare, but a simple solution is finally found when he realizes that he is most comfort...

De meester komt bijna te laat

By Heinz Janisch

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Alle kinderen in de klas komen altijd op tijd. De meester komt namelijk altijd bijna te laat en hij verzint zulke grappige smoezen dat iedereen ze wil horen. Prentenboek met expressieve krijttekeni...

O Gato Esperto. Os Mais Belos Contos De Fadas Com Bichos De Todo O Mundo

By Heinz Janisch

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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.