Martha J. McNamara Books

From Tavern to Courthouse

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"During the formative years of the American republic, lawyers and architects, both eager to secure public affirmation of their professional status, worked together to create specialized, purpose-bu...

Amateur Movie Making

By Martha J. McNamara, Karan Sheldon

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Amateur Movie Making

By Martha J. McNamara, Karan Sheldon

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Amateur Movie Making

By Martha J. McNamara, Dino Everett, Karan Sheldon, Alice T. Friedman, Libby Bischof

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Amateur Movie Making

By Martha J. McNamara, Karan Sheldon

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Work in Progress

By Martha J. McNamara

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New Views of New England

By Martha J. McNamara, Georgia B. Barnhill

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The IQ Debate: A Selective Guide to the Literature

By Martha J. McNamara, Stephen H. Aby

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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.