Jon M. Fishman Books

Kevin Durant

By Jon M. Fishman

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Jose Altuve

By Jon M. Fishman

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Simone Biles

By Jon M. Fishman

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Simone Biles joined the US women's gymnastics team to compete at the Summer Olympic Games in Rio de Janeiro, Brazil, in 2016. Along with her teammates, she sailed through her events to claim the go...

Simone Biles

By Jon M. Fishman

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Safe Zone Level Up

By R. T. Martin

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Michael Phelps

By Jon M. Fishman

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"US swimmer Michael Phelps was the most decorated Olympic athlete in history before the 2016 Summer Games in Rio de Janeiro, Brazil. Winning an additional five golds and a silver in Rio for a total...

Michael Phelps

By Jon M. Fishman

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Kevin Durant

By Jon M. Fishman

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LeBron James

By Jon M. Fishman

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Lionel Messi

By Jon M. Fishman

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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.