Martin Luis Guzman Books

Memoirs of Pancho Villa Pan America

By Martin Luis Guzman

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The Eagle and the Serpent

By Martin Luis GuzmGan

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Bombarderos

By Jennifer Reed

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El pajaro del terror

By Carol Lindeen

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Simple text and illustrations describe phorusrhacos, how they lived, and how they became extinct. Sumario en espanol: El texto y las ilustraciones simples describen phorusrhacos, como vivieron, y...

Los Veinticinco Gatos Mixtecos

By Matthew Gollub, Martin Luis Guzman

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Superabuelo

By David M. Schwartz, Martin Luis Guzman

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La sombra del Caudillo

By Guzman, Martin Luis

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Obras Completas III

By Martin Luis Guzman

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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.