Angelo Loula Books

Artificial Cognition Systems

By Angelo Loula, Ricardo Gudwin, Joao Queiroz

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Human-centered system design for electronic governance

By Saqib Saeed, Christopher G. Reddick

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"This book provides special attention to the most successful practices for implementing e-government technologies, highlighting the benefits of well designed systems in this field, while investigat...

Artificial Cognition Systems

By Angelo Loula

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Computacao Cognicao Semiose

By Ricardo Gudwin, Joao Queiroz, Angelo Loula

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International Journal of Signs and Semiotic Systems Ijsss Issue 1

By Angelo Loula

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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.