Polly Horvath Books

"Tout au fond de son coeur, Primrose Squarp sait bien que ses parents sont toujours en vie. Leur bateau n'est jamais rentré au port après le terrible typhon qui s'est abattu sur Coal Harbour, tous...

So ein Zirkus mit den Halibuts.

By Polly Horvath

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Todo Sobre UN Wafle Torre de Papel

By Polly Horvath

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Un Verano En La Canada De Los Osos Torre de Papel

By Polly Horvath, Juan Manuel Pombo

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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.