Paulo Roberto Pires Books

A Marca do Z. A Vida e os Tempos do Editor Jorge Zahar

By Paulo Roberto Pires

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Millor

By Cassio Loredano, Julia Kovensky, Paulo Roberto Pires

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The catalogue brings together 500 original drawings by an artist difficult to classify. Comedian, author, playwright and journalist, Millôr Fernandes (b Brazil 1923 -2012) drawing become a referenc...

Se um de nos dois morrer

By Paulo Roberto Pires

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A novel.

Arte do Motor A

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Helio Pellegrino, a paixao indignada

By Paulo Roberto Pires

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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.