Sergeĭ Lukʹíànenko Books

New Watch: Book Five

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Older and more powerful, Light magician Anton Gorodestsky has risen to the top levels of the Night Watch. He is also father to a ten-year-old girl who is destined to become a magician of unpreceden...

Sixth Watch

By Sergei Lukyanenko, Sergeĭ Lukʹíànenko, Sergeĭ Lukʹi͡Anenko

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The Final Chapter In Sergei Lukyanenko's Internationally Bestselling Night Watch Series—a Revelatory Urban Fantasy Set In Contemporary Moscow. They Live Among Us. They Fight Among Us. They’re The O...

The Night Watch:

By Sergei Luk Ianenko

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The Night Watch

By Sergei Luk Ianenko

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The Day Watch

By Sergei Luk Ianenko

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The Twilight Watch

By Sergei Luk Ianenko

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The Last Watch

By Sergei Lukyanenko

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The New Watch

By Sergei Luk Ianenko

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The Twilight Watch

By Sergei Lukyanenko

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The Day Watch

By Vladimir Vasiliev, Sergei Luk Ianenko

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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.