Juanito Avelar Books

Fernao de Oliveira

By Juanito Avelar, Claudia Pfeiffer, Maria Bernadete Marques Abaurre Gnerre

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Parameter Theory and Linguistic Change

By Juanito Avelar, Filomena Sandalo, Charlotte Galves, Ruth Lopes, Sonia Cyrino

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Parameter Theory and Linguistic Change

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Leading scholars examine languages ranging from old Egyptian to modern Afrikaans. They consider the insights parametric theory offers to understanding the dynamics of language change and test new h...

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.