Donn Pearlman Books

Collecting Baseball Cards

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Here is the story of the Philadelphia Flyers -- from the late Gene Hart, the man who was the team's radio voice for over 20 years. This book is not just a narrative of the Flyers' history, though i...

Breaking into Broadcasting

By Donn Pearlman

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Collecting baseball cards

By Donn Pearlman

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Collecting baseball cards

By Donn Pearlman

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Making money with baseball cards

By Paul Green

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Best buys in rare coins

By Donn Pearlman

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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.