Rick Riordan Books

Percy Jackson the Olympians Box Set

By Rick Riordan

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The Kane Chronicles Collection Rick Riordan 3 Books Set Red Pyramid Throne Fire

By Rick Riordan

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The Sea of Monsters Percy Jackson and the Olympians

By Rick Riordan

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The Son of Neptune Heroes of Olympus Book 2

By Rick Riordan

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When demonic cheerleaders invade his high school, Percy hurries to Camp Half Blood, from where he and his demigod friends set out on a quest through the Labyrinth while the war between the Olympian...

The last Olympian

By Rick Riordan

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Percy Jackson and his army of young demigods do battle with Kronos on the streets of Manhattan as Percy's sixteenth birthday approaches and his fate looms even closer.

The house of Hades

By Rick Riordan

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"Greek and Roman demigods from the Prophecy of Seven must work together to seal the Doors of Death--and help Percy and Annabeth escape the Underworld in the process"--

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.