Jeff Savage Books

Kevin Durant

By Jeff Savage

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This brief biography explores the personal life and career of NBA star Kevin Durant.

Sports great Brett Favre

By Jeff Savage

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Profiles the personal life and professional career of the star quarterback for the Green Bay Packers.

Top 10 professional football coaches

By Jeff Savage

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Profiles the lives and careers of Paul Brown, Joe Gibbs, Bud Grant, George Halas, Jimmy Johnson, Curly Lambeau, Tom Landry, Vince Lombardi, Don Shula, and Bill Walsh.

Sports great Juwan Howard

By Jeff Savage

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Traces the life of the Washington Wizards' star forward, both on and off the court.

Highlights the lives and careers of ten winners of the Heisman trophy: Marcus Allen, Tim Brown, Ernie Davis, Tony Dorsett, Doug Flutie, Eddie George, Archie Griffin, Paul Hornung, Barry Sanders, an...

Top 10 in-line skaters

By Jeff Savage

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Profiles the lives and careers of Chris Edwards, Matt Mantz, Fabiola Da Silva, and other professional in-line skaters who perform ariel flips, spins, and jumps.

Sports Great Stephon Marbury Sports Great Books

By Jeff Savage

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Sports Great Ken Griffey Jr. Sports Great Books

By Jeff Savage

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Top 10 Sports Bloopers and Who Made Them Sports Top 10

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Top 10 Physically Challenged Athletes Sports Top 10

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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.