Jairo Marconi Nicolau Books

Multipartidarismo e democracia

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"Theoretically well-informed and carefully presented work examines ways in which the electoral system affects the number of parties, and the consequences of party fragmentation for democratic conso...

Eleicoes no Brasil

By Jairo Marconi Nicolau

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Representantes de quem

By Jairo Marconi Nicolau

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Historia do voto do Brasil

By Jairo Marconi Nicolau

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Reforma politica no Brasil

By Jairo Marconi Nicolau

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Sistema eleitoral e reforma politica

By Jairo Marconi Nicolau

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"Written for a general audience yet academically sound, work offers clear and concise introduction to electoral system reform in Brazil. Also useful as a guide to electoral formulae around the worl...

Instituicoes representativas no Brasil

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Para alem das urnas

By Jairo Marconi Nicolau, Ricardo De Joao Braga

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Dados eleitorais do Brasil, 1982-1996

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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.