Rick Riordan Books

Percy Jackson and the Olympians: Titan's Curse: The Graphic Novel, The-Percy Jackson and the Olympians

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When the goddess Artemis disappears while hunting a rare, ancient monster, a group of her followers joins Percy and his friends in an attempt to find and rescue her before the winter solstice, when...

Heroes of Olympus, The, Book Five: Blood of Olympus, The-Heroes of Olympus, The, Book Five

By Rick Riordan

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Heroes of Olympus, The, Book Five: Blood of Olympus, The-Heroes of Olympus, The, Book Five

By Rick Riordan

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Throne of Fire

By Rick Riordan

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Blue Bloods

By Robert Venditti

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Select teenagers from some of New York City's wealthiest and most socially prominent families learn a startling secret about their bloodlines.

Kane Chronicles, The, Book One: Red Pyramid: The Graphic Novel, The-Kane Chronicles, The, Book One

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.