Emmett Casey Books

Favorite Science Fiction Stories

By Evelyn E. Smith, Horace Brown Fyfe, H. Beam Piper, Clifford D. Simak, Murray Leinster, Keith Laumer, Irving Cox Jr., Emmett Casey, Milton Lesser, Philip K. Dick, Jim Roberts, Winston Marks, Mark Nelson, Robert F. Young, Fritz Leiber, A. Bertram Chandler, Harry Harrison, Randall Garrett, Poul Anderson, Kevin Killavey, Cindy Hardin Killavey

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Lester del Rey Collection

By Lester Del Rey, Emmett Casey, Jim Roberts

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Police Operation

By H. Beam Piper, Emmett Casey

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Vampyre The

By John Polidori, Emmett Casey

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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.