Thomas J. Craughwell Books

O Himmel hilf

By J. Thomas Craughwell

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Descubre tu coeficiente intelectual

By Thomas J. Craughwell

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Descubre tu coeficiente matematico

By Thomas J. Craughwell

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St. Peter's Bones

By Thomas J. Craughwell

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In this fascinating account of the search for the remains of the world's first pope, none other than Peter, the chief apostle of Jesus, Thomas J. Craughwell takes us on one of the most exciting arc...

St. Peter's Bones

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The Presidents Fact Book

By Roger Matuz, Thomas J. Craughwell, Bill Harris

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Presidents Fact Book Revised and Updated

By Roger Matuz, Bill Harris, Thomas J. Craughwell

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Saints Behaving Badly

By Thomas J. Craughwell

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Saints Behaving Badly

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From thieves and extortionists to mass murderers and warmongers, up-close and embarrassingly personal snapshots of those sanctified people with the most unsaintly pasts in the history of Christiani...

Stealing Lincoln s Body

By Thomas J. CRAUGHWELL

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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.