Julio A. Gonzalo Books

Intelligible Universe

By Julio A. Gonzalo

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Great Solid State Physicists of the 20th Century

By Julio A. Gonzalo, Carmen Arago Lopez

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World Population

By Julio A. Gonzalo, Felix Fernando Munoz, Manuel Alfonseca

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Cosmic paradoxes

By Julio A. Gonzalo

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"Beginning with the famous Olber's paradox, paradoxes such as the missing mass, dark energy, baryon to photon ratio and cosmic zero-point energy are examined in detail. The Heisenberg-Lemaitre's un...

Cosmic paradoxes

By Julio A. Gonzalo

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Cosmic Paradoxes

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Cosmic Paradoxes

By Julio A. Gonzalo

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Intelligible design

By Manuel Maria Carreira, Julio A. Gonzalo

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Intelligible Design

By Julio A. Gonzalo, Manuel M. Carreira

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Great solid state physicists of the 20th century

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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.