Michael T. Lynch Books

American sports car racing in the 1950s

By Michael T. Lynch

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Baseball s Untold History

By Michael Lynch

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Baseball s Untold History

By Michael Lynch

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Harry Frazee Ban Johnson and the Feud That Nearly Destroyed the American League

By Lynch Michael T. Jr.

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It ain t so

By Michael T. Lynch

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"Eight members of the Chicago White Sox conspired to throw the 1919 World Series to the Cincinnati Reds. The players were banned from organized baseball. But what if the Black Sox scandal had never...

It Ain t So

By Lynch Michael T. Jr.

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Harry Frazee Ban Johnson and the feud that nearly destroyed the American League

By Michael T. Lynch

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"Baseball fans know Red Sox owner Harry Frazee as "the man who sold Babe Ruth." Over the next seven years, Frazee, American League president Ban Johnson and their respective allies waged war over s...

Ferrari in America

By Michael T. Lynch, Janos Wimpffen

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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.