Jeff Savage Books

Sammy Sosa, heroe de los jonrones

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A biography of the Chicago Cubs outfielder who in 1998, along with Mark McGuire, broke the home run record previously set by Roger Maris.

Eric Lindros

By Jeff Savage

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Relates the life and career of the Canadian-born hockey star who plays with the Philadelphia Flyers.

Ichiro Suzuki Amazing Athletes

By Jeff Savage

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Julie Krone, unstoppable jockey

By Jeff Savage

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Discusses the childhood, education, riding career, and personal life of the first woman jockey to win a Triple Crown race.

Barry Bonds

By Jeff Savage

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A biography of the San Francisco Giants outfielder who is a three-time winner of baseball's Most Valuable Player award.

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.