Leonard Victor Rutgers Books

Exploring Jewish-Christian interaction in Late Antiquity in the form of three case studies, Leonard Rutgers shows that early Christian ideas about Jews and Judaism not only played a determining rol...

The Jews in late ancient Rome

By Leonard Victor Rutgers

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The Jews in Late Ancient Rome focusses on the Jewish community in third- and fourth-century Rome, and in particular on how this community related to the larger non-Jewish world that surrounded it....

Onderaards Rome

By Leonard Victor Rutgers

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What Athens Has to Do With Jerusalem

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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.