Joaquim Oliveira Caetano Books

Pintura em Moura

By Joaquim Oliveira Caetano

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On Antique Painting

By Joaquim Oliveira Caetano, Alice Sedgwick Wohl, Hellmut Wohl, Francisco De Hollanda

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"An English translation of Da pintura antiga by the sixteenth-century Portuguese artist Francisco de Hollanda, who was sent to Rome in 1538 by the Portuguese royal family to study art and architect...

L'age d'or de la Renaissance portugaise

By Joaquim Oliveira Caetano

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L age d or de la Renaissance portugaise

By Joaquim Oliveira Caetano

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Alvaro Pirez d Evora

By Ana Sousa

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Imagens e mensagens

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Garcia Fernandes e Diogo de Contreiras

By Joaquim Oliveira Caetano

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Obras primas da arte portuguesa

By Joaquim Oliveira Caetano

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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.