Andrew Pettegree Books

Brand Luther

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When Martin Luther posted his "theses" on the door of the Wittenberg church in 1517, protesting corrupt practices, he was virtually unknown. Within months, his ideas spread across Germany, then all...

Marian Protestantism

By Andrew Pettegree

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Reformasyon Dunyasi

By Andrew Pettegree

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Netherlandish books

By Andrew Pettegree

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Netherlandish books

By Andrew Pettegree

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Netherlandish books

By Andrew Pettegree

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Reformation World

By Andrew Pettegree

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Bookshop of the World

By Andrew Pettegree, Arthur Der Weduwen

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Book in the Renaissance

By Andrew Pettegree

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Book in the Renaissance

By Andrew Pettegree

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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.