Edward Packard Books

RETURN TO CAVE TIME

By Edward Packard

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Mutiny in Space

By Edward Packard

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SUPERCOMPUTER 39

By Edward Packard

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YOU ARE A GENIUS

By Edward Packard

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MASTER OF KARATE

By Edward Packard, Richard Brightfield

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The reader's decisions control the course of an adventure in Japan, in which mysterious figures wearing black medieval armor attack the participants in a karate competition.

The Worst Day of Your Life Choose Your Own Adventure 100

By Edward Packard

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Through the Black Hole

By Edward Packard

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DAREDEVIL PARK

By Edward Packard, Sara Compton

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Invaders from Within

By Edward Packard

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Faster than light

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.