Maria Del Carmen Guzman Books

Ven a mi nido

By Cristina Guzman, Ines Maria Guzman, Lola Acosta, Daniel Moscugat, Antonio Jesus Garcia Pereyra, Pedro J. Plaza, Antonio Aguilar, Maria Del Carmen Guzman

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Estancias del agua

By Maria Del Carmen Guzman

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Los ninos del horoscopo

By Maria Del Carmen Guzman

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A group of poems about 12 children who pretend that they are the different symbols of the horoscope.

Nena

By Maria Del 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.