John Franklin Hall Books

Etruscan Italy

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Livy describes the Etruscans as filling the whole of ancient Italy with their power and influence. While Etruscan rule throughout large parts of the Italian peninsula endured for but a few centurie...

New Testament witnesses of Christ

By John Franklin Hall

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Masada and the world of the New Testament

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The artifacts excavated from the ruins of Masada yield fascinating insights into the world of the New Testament and the times when King Herod, Pilate, Jesus, Peter, and Paul lived. This book invite...

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.