Jeff Garrett Books

Handbook of United States Coins 2021

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Whitman Publishing debuted the Handbook of United States Coins in 1942 as an authoritative resource showing how much coin dealers were paying on average to buy U.S. coins by type, date, and mintmar...

100 Greatest United States Modern Coins

By Jeff Garrett

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100 Greatest U. S. Coins

By Jeff Garrett, Mark Salzberg, William R. Anderson

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100 Greatest U. S. Coins

By Jeff Garrett

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100 Greatest United States Modern Coins

By Jeff Garrett

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A Guide Book of United States Coins 2020

By Jeff Garrett

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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.