Bartolomeu Campos Queiros Books

Nest egg

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"In the mountains of Brazil, there are only two seasons -- the rainy season and the dry season. Antonio is born during the rainy season, a bad omen. He is a sickly, odd child, born too soon slow...

Ate passarinho passa

By Bartolomeu Campos Queiros

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Ler, escrever e fazer conta de cabeca

By Bartolomeu Campos Queiros

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Por Parte de Pa

By Bartolomeu Campos Queiros

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Tempo de voo

By Bartolomeu Campos Queiros

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Sei por ouvir dizer

By Bartolomeu Campos Queiros

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O fio da palavra

By Bartolomeu Campos Queiros

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Ah mar

By Bartolomeu Campos Queiros

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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.