Brad Herzog Books

The Sports 100: The One Hundred Most Important People in American Sports History

By Brad Herzog

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Seventh-inning stretch

By Brad Herzog

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Presents some of baseball's best moments, bloopers, surprising stats, and amazing stories. Includes fun puzzles and action photos of some of baseball's greatest players.

MVP SPORTS PUZZLES Sports Illustrated for Kids

By Brad Herzog

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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.