Fritz Leiber Books

Die Umtriebe des Daniel Kesserich

By Fritz Leiber

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Horror Stories

By C. Jones

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"This collection of five stories explores a variety of different literary approaches to the genre of horror. From a violent spirit brought to life by an old whistle, to a terrifying monster who liv...

The Wanderer.

By Fritz Leiber

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The knight and knave of swords.

By Fritz Leiber

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The knight and knave of swords.

By Fritz Leiber

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The secret songs.

By Fritz Leiber

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The swords of Lankhmar

By Fritz Leiber

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The best of Fritz Leiber

By Fritz Leiber

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Wanderer

By Fritz Leiber

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The Silver Eggheads

By Fritz Leiber

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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.