Frances Bragan Valldejuly Books

Keka en el museo de arte de Ponce Keka in the Ponce Art Museum

By Frances Bragan Valldejuly, Antonio Martorell, Francesca Von Rabenau

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El dedito de Kiki

By Frances Bragan Valldejuly

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"Kiki es una niña como cualquier otra, pero tiene una mala costumbre que está intentando dejar: chuparse el dedito. No importa cuánto intenta dejar de hacerlo, no lo logra. Su familia, sus amigos y...

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.