William J. Ryczek Books

Crash of the Titans

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"This is the history of the short-lived but fascinating New York Titans and the first three years of the American Football League. Included throughout are reminiscences from new interviews with ove...

Baseball s First Inning

By William J. Ryczek

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"Describes evolution of baseball. The New York clubs are a primary focus as examples of how the sport became more sophisticated and popular. The author compares theories about many of baseball's "i...

Base ball pioneers 1850 1870

By Morris Peter

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"In this welcome work, leading historians of early baseball provide profiles of more than fifty clubs and their players. Engaging narratives bring these long-ago clubs back to life, stimulating mor...

Dr. Strangeglove

By William J. Ryczek

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Baseball s Wildest Season

By William J. Ryczek

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Base Ball Founders

By William J. Ryczek, Peter Morris, Jan Finkel

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Blackguards and Red Stockings

By William J. Ryczek

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Baseball on the Brink

By William J. Ryczek

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Sixties in the News

By William J. Ryczek

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Baseball on the Brink

By William J. Ryczek

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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.