Rita Marquilhas Books

Approaches to the History of Written Culture

By Martyn Lyons, Rita Marquilhas

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Approaches to the History of Written Culture

By Martyn Lyons, Rita Marquilhas

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Chapter 10 Avancos nas humanidades digitais

By Rita Marquilhas

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This handbook provides a general yet detailed account of the current research in Portuguese linguistics by combining overview chapters and in-depth analyses of selected topics. It integrates diachr...

Norma grafica setecentista

By Rita Marquilhas

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Faculdade das letras

By Rita Marquilhas

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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.