Joe Haldeman Books

Forever Peace Remembering Tomorrow

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Young Carmen Dula and her family are embarking on the adventure of a lifetime-they're going to Mars. But Carmen's rebellious streak leads her to venture out into the bleak Mars landscape alone, whe...

Forever War

By John Scalzi, Joe Haldeman

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Worlds Apart

By Joe Haldeman

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Vietnam and Other Alien Worlds

By Joe Haldeman

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War Year

By Joe Haldeman

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The Forever War The Forever War Series Book 1

By Joe Haldeman

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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.