Patricia Geis Books

Nestor Tellini

By Patricia Geis

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Néstor starts working in a fancy restaurant, and he and his fellow employees oversalt the soup.

Pascual Midon

By Patricia Geis

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En este libro ilustrado para niños, Pascual Midón está atendiendo la tintorería de sus padres. Por casualidad se mezcla las etiquetas en las prendas. In this illustrated children's book, Pascual M...

Petita Tamazic

By Patricia Geis Conti

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Pequeno Bouyei Ninos y ninas del mundo series

By Patricia Geis

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Pequena Tamazigh Ninos y ninas del mundo series

By Patricia Geis

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Valentina a Paris

By Anatxu Zabalbeascoa, Patricia Geis

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Bizi garen mundua

By Patricia Geis, Sergio Folch, Ttarttalo

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Gure inguruko jendea

By Patricia Geis, Ttarttalo

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Pequeno Sioux Little Sioux Ninos Y Ninas Del Mundo Boys and Girls of the World Spanish

By Patricia Geis

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Pequeno Inuit

By Patricia Geis

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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.