Howard Waldrop Books

Contents* ix Introduction (Nebula Awards 21) essay by George Zebrowski* 1 What Was 1985 That We Were Mindful of It? essay by Algis Budrys* 15 Heirs of the Perisphere (1985) shortstory by Howard Wal...

Modern Classics of Science Fiction

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Mondo Elvis

By Lucinda Ebersole

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Elvis is, and always will be, The King. Even as he (probably) lies in his grave at Graceland, he lives on in his music, his movies, on the Vegas stage, through the U.S. Mail, and on these pages. M...

Going Home Again

By Howard Waldrop

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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.