Tom Armstrong Books

A history of art in the United States which includes the contributions of the Indians and early settlers and discusses art movements and important individual artists in the eighteenth, nineteenth,...

The Pantheon Story Of American Art For Young People

By Ariane Ruskin Batterberry, Sallie Baldwin, Tom Armstrong, Michael Batterberry

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A History Of Art In The United States Which Includes The Contributions Of The Indians And Early Settlers And Discusses Art Movements And Important Individual Artists In The Eighteenth, Nineteenth,...

Marvin Steps Out

By Tom Armstrong

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Marvin Born To Be Wild

By Tom Armstrong

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Marvin: Spoil Me

By Tom Armstrong

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More Views Of Life From The Perspective Of The Irrepressible And Witty Baby Marvin, Reprinted From The Daily Comic Strip.

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.