Rick Riordan Books

New York Times #1 best-selling author Rick Riordan pays homage to Jules Verne in his exciting modern take on 20,000 Leagues Under the Sea."If you have ever craved a story that will leave your heart...

Daughter of the Deep B N Exclusive Edition

By Rick Riordan

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Magnus Chase and the Gods of Asgard Book 3 The Ship of the Dead International Edition

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Daughter of the Deep

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Daughter of the Deep Indies Signed Edition

By Rick Riordan

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Daughter of the Deep

By Rick Riordan, Lavanya Naidu

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From the World of Percy Jackson: The Sun and the Star

By Rick Riordan, Mark Oshiro

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Demigods Nico di Angelo and Will Solace must endure the terrors of Tartarus to rescue an old friend in this thrilling adventure co-written by New York Times #1 best-selling author Rick Riordan and...

From the World of Percy Jackson: The Sun and the Star

By Rick Riordan, Mark Oshiro

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Demigods Nico di Angelo and Will Solace must endure the terrors of Tartarus to rescue an old friend in this thrilling adventure co-written by New York Times #1 best-selling authors Rick Riordan and...

The Heroes of Olympus, Book Three: The Mark of Athena: The Graphic Novel

By Rick Riordan

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The third exciting entry in Rick Riordan's best-selling Heroes of Olympus series is now a graphic novel!In The Son of Neptune, Percy, Hazel, and Frank met in Camp Jupiter, the Roman equivalent of C...

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.