Ruy Castro Books

Garrincha: The Triumph and Tragedy of Brazil's Forgotten Footballing Hero

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"Based on extensive interviews with Antonio Carlos Jobim, Joao Gilberto, and all the major musicians and their friends, Bossa Nova explains how a handful of Rio de Janeiro teenagers changed the fac...

Bossa Nova

By Ruy Castro

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Rio de Janeiro

By Ruy Castro

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"In this portrait, Ruy Castro delves into the past and present of Rio, where even in periods of comparative calm there has always been a palpable excitement in the air." "While poets flirted with p...

Bossa nova.

By Ruy Castro

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Ela e carioca

By Author Not Identified

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Bossa Nova

By Jose Antonio Montano, Ruy Castro

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Bossa Nova

By Ruy Castro, Jose Antonio Montano

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Rio de Janeiro

By RUY CASTRO

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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.

Ruy Castro Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?