Núria Roca Books

Tu cuerpo de la cabeza a los pies

By Nuria Roca

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Describes the functions of our senses, skeletal structure and respiratory system.

Your Family

By Nuria Roca, Carlos Ganzinelli, Nuria Bosch Roca

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La Familia del Pequeno al Mayor

By Nuria Roca, Nuria Bosch

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At school, a group of young children and their teacher tell about the many different kinds of families in which they live. Includes activities for learning more about one's own family and heritage.

Tus Amigos De Antes a los Amigos de Ahora Friendship

By Nuria Roca

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Con el niño Juan, el protagonista de este libro, puedes recorrer diferentes situaciones en las que puedes encontrarte con tus amigos. Y los más mayores, con la ayuda de las actividades y de la guía...

Feelings

By Nuria Roca

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Sentimenos de la Tristeza a la Felicidad Feelings

By Nuria Roca

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Scared

By Nuria Roca

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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.