John Coombs Books

Johann Sebastian Bach: Life, Times, Influence

By John Coombs, B. Schwendowius, D. Wolfgang

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Political And Social Conditions / Ludwig Finscher -- Religious And Cultural Life / Walter Blankenburg -- Architecture And The Visual Arts / Harald Keller -- The Family / Christoph Wolff -- Events I...

How Can You Appear For Someone You Know Is Guilty

By John Coombs

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Enhancing small business opportunities in the DoD

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Making Improvements To The Army Distributed Learning Program

By Matthew W Lewis, John Coombs, Susan G. Straus, Michael G. Shanley, Kristin J. Leuschner, Michael Shanley, James C. Crowley

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Michael G. Shanley ... [et Al.]. Mg-1016-a--p. [4] Of Cover. Includes Bibliographical References (p. 201-205).

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.