William Campbell Powell Books

Expiration day

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"It is the year 2049, and humanity is on the brink of extinction. Tania Deeley has always been told that she's a rarity: a human child in a world where most children are sophisticated androids manu...

Expiration Day

By William Campbell Powell

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Expiration Day Lib E

By Gabrielle De Cuir, Cassandra De Cuir, William Campbell Powell

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Data waznosci

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Expiration Day

By William Campbell Powell

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Sherlock Holmes

By Emma Tonkin, Stephen Herczeg, Michael Siverling, Derrick Belanger, M. Elmendorf

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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.