Charles Ghigna Books

Illustrations and easy-to-read, rhyming text show what makes autumn special, from colorful leaves and pumpkins to Halloween and Thanksgiving festivities.

Veo la primavera

By Charles Ghigna

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Illustrations and easy-to-read, rhyming text show what makes spring special, from raindrops and robins to bluebells and butterflies.

Veo el verano

By Charles Ghigna

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Illustrations and easy-to-read, rhyming text show what makes summer special, from sunshine and sailboats to ice cream and picnics.

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.