Harry Turtledove Books

Supervolcano

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"An explosion of incalculable magnitude in Yellowstone Park propelled lava and ash across the landscape and into the atmosphere, forever altering the climate of the entire continent. Nothing grows...

Joe Steele

By Harry Turtledove

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The New York Times bestselling author of the Supervolcano trilogy envisions the election of a United States President whose political power will redefine what the nation is—and what it means to be...

World War in Balance

By Harry Turtledove

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Were Blood

By Harry Turtledove

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Werenight

By Harry Turtledove

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Prince of the North

By Harry Turtledove

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King of the North

By Harry Turtledove

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Fox and Empire

By Harry Turtledove

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Misplaced Legion

By Harry Turtledove

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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.