Richard Castle Books

Deadly heat

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Determined to find justice for her mother, top NYPD Homicide Detective Nikki Heat continues to pursue the elusive former CIA station chief who ordered her execution over a decade ago. For the hunt,...

Raging heat

By Richard Castle

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An illegal immigrant falls from the sky and NYPD Homicide Detective Nikki Heat's investigation into his death quickly captures the imagination of her boyfriend, the Pulitzer Prize-winning journalis...

Driving heat

By Richard Castle

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On the morning of her first day as the new captain of the Twentieth Precinct, Nikki Heat is rocked when her NYPD shrink washes up dead on the banks of the Hudson River. But the jarring murder of th...

Storm front

By Richard Castle

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When, throughout the world, high-level bankers are being tortured and murdered by his old nemesis Gregor Derrick, Derrick Storm is called in by the CIA to figure out who Volkov is working for and w...

Heat Rises Unabridged CD

By Richard Castle

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Naked Heat LOW PRICE CD

By Richard Castle

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Frozen Heat

By Richard Castle

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Deadly Heat

By Richard Castle

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Naked Heat

By Richard Castle

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Crashing Heat

By Richard Castle

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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.