Herik Hanna Books

When the entire crew and the inmates of prison ship Goliath 01 are massacred by the sadistic Colonel Mercer, John - the sole survivor of the ordeal - finds himself drifting through space with nothi...

Bad Ass 1

By Bruno Bessadi, Herik Hanna

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Detectives T01

By Herik Hanna, Sylvain Guinebaud

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Detectives T02

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Detectives T03

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Detectives T04

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Detectives T05

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WW 2.2. la otra Guerra Mundial II Operacion Felix

By Marcial Toledano Vargas, Jose Manuel Robledo Tiedra

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Yedi Detektif

By Eric Canete

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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.