Stef Penney Books

Bajo la estrella polar

By Victoria Horrillo Ledesma, Stef Penney

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In de nog ongerepte natuur van Canada in de tweede helft van de 19e eeuw gaat een vrouw samen met haar indiaanse gids op zoek naar haar zoon die is vertrokken om de moordenaar van zijn vriend op te...

De onzichtbaren

By Stef Penney

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The Invisible Ones

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The Invisible Ones

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The Invisible Ones

By Stef Penney

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In a hospital bed, small-time private detective Ray Lovell veers between paralysis and delirium. But before the accident that landed him there, he’d been hired to find Rose Janko, the estranged dau...

The tenderness of wolves

By Stef Penney

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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.