John T. Howard Books

A Bibliography Of Theatre Technology: Acoustics And Sound, Lighting, Properties, And Scenery

By John T. Howard, John Howard

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Music From The Days Of George Washington

By John T. Howard, Carl Engel, Eve Howard, John Tasker Engel Carl

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Collected And Provided With An Introduction By Carl Engel ; The Music Edited By W. Oliver Strunk ; With A Preface By Sol Bloom. Reprint. Originally Published: 1st Ed. Washington, D.c. : George Wash...

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.