Edgar J. Goodspeed Books

Index patristicus, sive, Clavis patrum apostolicorum operum

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Homeric Vocabularies

By Edgar J. Goodspeed, William Bishop Owen

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An essential step in learning and using any language is the acquisition of a working vocabulary. Many methods have been devised to help with this acquisition, all of them stressing the fundamental...

Strange New Gospels

By Edgar J. Goodspeed, Edgar Johnson Goodspeed

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The Toronto Gospels

By Edgar J. Goodspeed

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The Newberry Gospels

By Edgar J. Goodspeed

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Index Patristicus Sive Clavis Patrum Apostolicorum Operum

By Edgar J. Goodspeed

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How Came The Bible

By Edgar J. Goodspeed

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Paul

By Edgar J. Goodspeed

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The Story Of The New Testament

By Edgar J. Goodspeed

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Paul

By Edgar J. Goodspeed

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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.