Jeff Savage Books

A biography of the Chicago Cubs outfielder known for hitting many home runs and doing humanitarian work in his native country, the Dominican Republic.

Mike Piazza

By Jeff Savage

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Describes the life and achievements of the Los Angeles Dodgers' star catcher and power-hitter who was voted National League Rookie of the Year in 1993.

Jeff Gordon

By Jeff Savage

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Biography of the young stock car driver who has won three NASCAR championships and more than forty races in four years.

Sammy Sosa, heroe de los jonrones

By Jeff Savage

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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.

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.