Michael Gruber Books

Italische Terra Sigillata mit Appliken in Noricum

By Eleny Schindler Kaudelka

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El experimento Velazquez

By Michael Gruber

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El libro del aire y de las sombras

By MICHAEL GRUBER

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Nachtrituelen

By Gruber Michael

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Een Amerikaanse archeologe, die de magisch-religieuze riten van een Afrikaanse stam heeft bestudeerd, probeert samen met een detective een seriemoordenaar op te sporen die rituele moorden pleegt in...

De droom van de jaguar

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The Book of Air and Shadows

By Michael Gruber

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Tropic of Night

By Gruber Michael

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Valley of Bones

By Michael Gruber

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Night of the Jaguar

By Michael Gruber

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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.