Edward Packard Books

Third Planet From Altair

By Edward Packard

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Cave of Time

By Edward Packard

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The reader enters a mysterious cave and by following the instructions on each page can have several different adventures backward and forward in time.

Deadwood City

By Edward Packard

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Forbidden Castle the

By Edward Packard

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Underground Kingdom

By Edward Packard

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Hyperspace

By Edward Packard

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Mountain Survival

By Edward Packard

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Supercomputer

By Edward Packard

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You Are a Shark

By Edward Packard

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RETURN TO CAVE TIME

By Edward Packard

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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.