Matthew E. Bunson Books

Encyclopedia Sherlockiana: An A-To-Z Guide to the World of the Great Detective
All Shall Be Well
The Vampire
The Vampire

By Matthew Bunson

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Papal Wisdom
Encyclopedia of the Middle Ages
The angelic doctor
The angelic doctor

By Matthew Bunson

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2007 Catholic Almanac Our Sunday Visitor s Catholic Almanac
Catholic almanac
Catholic almanac

By Matthew Bunson

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2009 Our Sunday Visitor s Catholic almanac
2009 Our Sunday Visitor s Catholic almanac

By Matthew Bunson

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The most complete one-volume source of facts and information on the Catholic Church.

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We have a pope! Benedict XVI

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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.

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