Shiei Books

Luna, the perfect secret agent, is a girl grown in a lab from genetic material. She has been trained since birth to be the U.S. government's ultimate espionage weapon.

Aoi House In Love Volume 1 Aoi House in Love

By Shiei, Adam Arnold

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Aoi House In Love Vol 2

By Shiei, Adam Arnold

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Aoi House Omnibus 2

By Shiei, Adam Arnold

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Alex and Sandy (and their panty-stealing pet hamster Echiboo) have survived an entire semester of unspeakable tortures at the hands of five crazed yaoi fangirls. Now the whole gang is off to the an...

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.

Shiei Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?