Carlos Martins Books

The Universe Today

By Carlos Martins

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From Varying Couplings to Fundamental Physics

By Carlos Martins, Paolo Molaro

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A gravura de Arthur Luiz Piza

By Carlos Martins, Viviane Tabach

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Gravura e modernidade

By Carlos Martins

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The exhibition presents 201 prints by 54 artists, thus creating a broad panorama of the production of prints during the first years of modernity in Brazil. It is the result of a research that has b...

Panoramas

By Sergio Burgi, Carlos Martins, Julia Kovensky

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For the exhibition, the organizers prepared scenographic reconstruction of a roundabout, a major attraction in major European cities in the late eighteenth and early nineteenth century. The roundab...

Revelando um acervo

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Brasiliana

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O diplomata e desenhista Benjamin Mary e as relacoes da Belgica com o Imperio do Brasil

By Carlos Martins

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The Cosmology of Extra Dimensions and Varying Fundamental Constants

By Carlos J. A. P. Martins

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The workshop on the cosmology of extra dimensions and varying fundamental constants was part of JENAM 2002, held in Porto in September 2002. It was the first major international workshop devoted to...

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.