Rui Umezawa Books

The Truth About Death and Dying

By Rui Umezawa

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The truth about death and dying

By Rui Umezawa

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Strange light afar

By Rui Umezawa

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A bitterly jealous brother, a samurai who makes the ultimate sacrifice, a cold-hearted husband, a monk who mistakes desire for piety, a fraudulent merchant who meets his match in a supernatural riv...

Strange Light Afar

By Rui Umezawa, Mikiko Fujita

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Empty Hand: A Karate Word Book

By Rui Umezawa

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62 p. : 22 cm

Aiko's flowers

By Rui Umezawa

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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.