David Coffey Books

Deus Trinitas: The Doctrine of the Triune God

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"Recent years have seen a resurgence of interest in the doctrine of the Trinity, following a long period in which it was considered irrelevant to the rest of theology and to the challenge of Christ...

Schools and work developments in vocational education: Historical and Current Perspectives

By David Coffey

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The Vocational Purpose in English Schools: Historical and Current Perspectives

By David Coffey

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Veterinary Surgeon s Guide to Dogs

By David Coffey, David J. Coffey

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Sheridan's lieutenants

By Coffey David

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The Sacrament of Reconciliation

By David M. Coffey

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"Father Coffey discusses the theology of the sacrament of reconciliation that emanated from the reformed rites that were promulgated after Vatican II. He treats the public nature of sin and forgive...

Sheridan s Lieutenants

By David Coffey

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Sheridan s Lieutenants

By David Coffey

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Build That Bridge

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Did you receive the Holy Spirit when you believed?

By Coffey David

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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.