Calros Silvar Books

El roble

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An oak tree explains its life in different seasons, the animals that live around and in it, and its connections with humans, who pose the greatest threat to its long life. "Todos los habitantes de...

Os gazafellos

By Pepe Carballude

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Guia das macroalgas de Galicia

By Calros Silvar, Jorge Otero Schmitt, Marisa Castro Cerceda, Patricia Comesana Martinez

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El roure

By Calros Rodriguez Silvar

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Arboles

By Calros Silvar, Henrique Nino Ricoi

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Aves

By Calros Silvar, Xose M. Penas Patino, Carlos Pedreira Lopez

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Setas

By Calros Silvar, Puri Lorenzo, Alfredo Justo, Marisa Castro

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El arte del buen pescar

By Calros Silvar, Jose Maria Vilar Varela

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El Roble

By Calros Silvar

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Guia das aves de Galicia

By Calros Silvar, Xose Manuel Penas Patino, Carlos Pedreira Lopez

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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.