Rick Riordan Books

The Lightning Thief

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Twelve-year-old Percy Jackson is about to be kicked out of boarding school . . . again. No matter how hard he tries, he can't seem to stay out of trouble. But can he really be expected to stand by...

El trono de fuego: Las cronicas de Kane, Libro 2

By Rick Riordan

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Carter and Sadie must outsmart the House of Life and the gods of chaos in order to complete their worldwide search for an ancient Egyptian book. Quedan sólo cinco días para que una gran serpiente...

El hijo de Neptuno: Heroes del Olimpo 2

By Rick Riordan

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Demigod Percy Jackson, still with no memory, and his new friends from Camp Jupiter, Hazel and Frank, go on a quest to free Death, but their bigger task is to unite the Greek and Roman camps so that...

The Lightning Thief

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Siege of the Sun

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The Trials of Apollo Book One

By Rick Riordan, Robbie Daymond

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Magnus Chase and the Gods of Asgard Book Two

By Rick Riordan, Kieran Culkin

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Las pruebas de Apolo Libro 1 El oraculo oculto

By Rick Riordan

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El Martillo de Thor Spanish Lang Edition Magnus Chase and the Gods of Asgard Book 2

By Rick Riordan

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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.