Maria Ana Ramos Books

A Lingua Portuguesa em Viagem: Actas do Coloquio Comemorativo do Cinquentenario do Leitorado de Portugues da Universidade de Zurique, 20 a 22 de Junho de 1996

By Martin Lienhard, Marilia Mendes, Lidia Jorge, Georges Guntert, Maria Ana Ramos, Coloquio Comemorativo Do Cinquentenario Do Leitorado De Portugues Da Universidade De Zurique 1996 Universitat Zurich, Gerold Hilty, Guilia Lanciani, Guiseppe Tavani

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De Roma ata Lixboa

By Maria Ana Ramos, Joao Dionisio, Henrique Monteagudo, Elsa Goncalves

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Cancioneiro da Ajuda

By Maria Ana Ramos, Carter Henry Hare

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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.