Earl B. Heard Books

Louisiana Sports Legends and Heroes

By Dave Moormann Earl Heard

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Rock Bottom and Back

By Earl B. Heard Susan Mustafa

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Michael learns to listen

By Earl B. Heard

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"Second to survival is recognition, there is no better way to recognize someone than to listen to them. Come join Michael and his family and friends as they learn and then share the secret of liste...

Energy Entrepreneurs

By Earl B. Heard, Brady Porche

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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.