Mamen Marcen Books

La Doctora Vitamina

By Laura Richichi, Mamen Marcen

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Un abbraccio per Puas

By Juani Velilla, Mamen Marcen

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Un extraordinario don

By David Blay, Hector Cabrera, Mamen Marcen

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Qui ha rovat la meva caca

By Mamen Marcen, Valeria Kiselova Savrasova

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?Me acompanas? Un cuento para desarrollar el apego seguro Can You Come with Me ? A Story to Develop a Healthy Bond

By Rafa Guerrero Mamen Marcen Il.

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Un precioso álbum ilustrado sobre el apego seguro, un vínculo fundamental en la infancia para una vida adulta plena y serena.   La tranquilidad que genera un apego seguro, la cer...

Quien se ha llevado mi caca

By Mamen Marcen, Valeria Kiselova Savrasova

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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.