Thomas A. McPherson Books

During the 1930s and 1940s, Henney came close to total industry dominance. It had an overwhelming range of products and a powerhouse dealer network, and managed a steady stream of innovations. In t...

Cadillac Fleetwood Series Seventy five limousines photo archive

By Thomas A. McPherson

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Miller Meteor

By Thomas A. McPherson

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A history of three independent, yet interwoven, companies, the unique segment of the motor industry in which they were involved, their charismatic leaders and their unique products; includes hundre...

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.