Rutger Kramer Books

Empires and Communities in the Post Roman and Islamic World C. 400 1000 CE

By Rutger Kramer, Walter Pohl

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Historiography and Identity III

By Rutger Kramer, Graeme Ward, Helmut Reimitz

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Monastic Communities and Canonical Clergy in the Carolingian World

By Rutger Kramer, Graeme Ward, Emilie Kurdziel

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Rethinking Authority in the Carolingian Empire

By Rutger Kramer

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By the early ninth century, the responsibility for a series of social, religious and political transformations had become an integral part of running the Carolingian empire. This became especially...

Rethinking Authority in the Carolingian Empire

By Rutger Kramer

Average: 0.00, 0 Ratings

By the early ninth century, the responsibility for a series of social, religious and political transformations had become an integral part of running the Carolingian empire. This became especially...

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.