Rick Riordan Books

Percy Jackson and the Olympians The Lightning Thief The Graphic Novel (paperback)

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Just in time for the Percy Jackson and the Olympians series on Disney+, a refreshed edition of The Lightning Thief graphic novelIf you haven't yet submerged yourself in the graphic novel adaptation...

From the World of Percy Jackson Camp Half-Blood Confidential

By Rick Riordan

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For fans of Percy Jackson and the Olympians, soon to be a series on Disney+, here's an insider's look at what it's like to live at Camp Half-Blood, the training ground for demigodsCan't get enough...

Chalice of the Gods INDIE SIGNED 9 Copy Floor Display

By Rick Riordan

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Percy Jackson and the Olympians The Lightning Thief Deluxe Collector's Edition

By Rick Riordan

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The deluxe collectors’ edition of Rick Riordan's classic first novel, a #1 New York Times bestseller with millions of copies sold throughout the world The worldwide phenomenon that inspire...

Maze of Bones

By Rick Riordan

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The Maze of Bones

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Vespers Rising

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Red Pyramid

By Rick Riordan

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Hammer of Thor

By Rick Riordan

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Kane Chronicles Book Two the Throne of Fire

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.