John Twelve Hawks Books

El Viajero

By John T. Hawks

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Lu xing zhe

By John Twelve Hawks

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The Dark River Vintage

By John Twelve Hawks

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A world that exists in the shadow of our own . . . the thrilling conclusion to John Twelve Hawks's Fourth Realm trilogy, The Golden City is packed with the knife-edge tension, intriguing characters...

The Golden City

By John Twelve Hawks

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Spark

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The Traveler

By John Twelve Hawks

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In London, Maya, a young woman trained to fight by her powerful father, uses the latest technology to elude detection when walking past the thousands of surveillance cameras that watch the city. In...

The Dark River

By John Twelve Hawks

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A fearless heroine.... A tale of brother against brother.... A battle for hope and freedom.Two brothers born into a race of Travelers—prophets able to journey to different realms of consciousness—h...

Dark River

By John Twelve Hawks

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Traveler

By John Twelve Hawks

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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.