Kelen Books

Emergency Medicine: A Comprehensive Study Guide
Leonardo da Vinci
Leonardo da Vinci

By Kelen

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Leonardo da Vinci's advice to artists
Leonardo da Vinci's advice to artists

By Leonardo Da Vinci

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Some of Leonardo da Vinci's thoughts on anatomy, motions and emotions, historical compositions, draperies, color, and landscapes are presented from his notebooks. Da Vinci's illustrations accompany...

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Muhammad
Muhammad

By Kelen

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Impatience de l absolu
Impatience de l absolu

By Jacqueline Kelen

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Muhammad
Muhammad

By Betty Kelen

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Mr. Nonsense: a Life of Edward Lear

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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.

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