Thomas W. Gillespie Books

The first theologians

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The First Theologians represents an important contribution to the scholarly investigation of the nature and function of early Christian prophecy. This topic, occasioned by Harnack's publication of...

Theology in the Service of the Church

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Key Methods in Geography

By Nicholas Clifford, Shaun French, Thomas W. Gillespie, Meghan Cope

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Key Methods in Geography

By Nicholas Clifford, Shaun French, Thomas W. Gillespie, Meghan Cope

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Ex Auditu Volume 02

By Thomas W. Gillespie

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Ex Auditu Volume 01

By Thomas W. Gillespie

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Ex Auditu Volume 03

By Thomas W. Gillespie

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Key Methods in Geography

By Nicholas Clifford, Thomas W. Gillespie, Meghan Cope

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Key Methods in Geography

By Nicholas Clifford, Thomas W. Gillespie, Meghan Cope

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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.