Rick Riordan Books

Big Red Tequila

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From the #1 New York Times bestselling author of the Percy Jackson and the Olympians series Everything in Texas is bigger . . . even murder. Meet Tres Navarre—tequila drinker, Tai Chi master, and...

The Widower's Two-Step

By Rick Riordan

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From the #1 New York Times bestselling author of the Percy Jackson and the Olympians series Tres Navarre has just hours of apprenticeship time to serve before he can go for his P.I. license. Stak...

The Devil Went Down to Austin

By Rick Riordan

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From the #1 New York Times bestselling author of the Percy Jackson and the Olympians series Rick Riordan, triple-crown winner of the Edgar, Anthony, and Shamus Awards, brings his fast-talking, ha...

Southtown

By Rick Riordan

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From the #1 New York Times bestselling author of the Percy Jackson and the Olympians series For Tres Navarre, English professor turned private investigator, business has lately taken a drastic t...

Rick Riordan, triple-crown winner of mystery’s most prestigious awards—the Edgar, the Anthony, and the Shamus—returns with a hotter-than-Texas-chili Tres Navarre crime drama. This time Navarre reop...

Rebel Island

By Rick Riordan

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From the #1 New York Times bestselling author of the Percy Jackson and the Olympians series A triple-crown winner of mystery’s most coveted awards, Rick Riordan brings his Texas-style take on the...

The last king of Texas

By Rick Riordan

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Southtown

By Rick Riordan

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Mission Road

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.