Fernando De Mello Vianna Books

Webster's New World Children's Dictionary 1st ed

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A dictionary for grades three to five providing definitions for an alphabetical listing of general vocabulary words, biographical and geographical names, and abbreviations. Includes word histories,...

Websters New World Dictionary

By Victoria Neufeldt, Fernando De Mello Vianna

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INTERNATIONAL GEOGRAPHIC ENCYCLOPEDIA AND ATLAS.

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International Geographic Encyclopedia and Atlas

By Fernando De Mello Vianna

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Diccionario ingles.

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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.