Fletcher Pratt Books

The land of unreason

By L. Sprague De Camp

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The Blue Star

By Fletcher Pratt

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The alternate Earth of "The Blue Star" is no home to swashbucklers or soldiers. It's a carefully worked out society, approximating the 18th-century Austro-Hungarian Empire. In this world, gunpowder...

Blue Sky

By Fletcher Pratt

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The Blue Star

By Fletcher Pratt

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The Compleat Enchanter

By L. Sprague De Camp, Fletcher Pratt

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Well of the Unicorn

By Fletcher Pratt

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The Compleat Enchanter

By L. Sprague De Camp

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The Civil War No. 05402

By Fletcher Pratt

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All About Famous Inventors and Their Inventions

By Fletcher Pratt

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Wall of Serpents

By L. Sprague De Camp, Fletcher Pratt

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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.