David Weber Books

Golden reflections

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Collects stories set in Fred Saberhagen's alternate universe in which the Incas and Aztecs are at war over who controls the time lines and the Mask, a device that allows the wearer to see into the...

Twelve-year-old Stephanie Harrington, a genetically-enhanced girl on the pioneer planet of Sphinx, bonds with a treecat, a telepathic and fully sentient animal, putting her in danger from highly pl...

The Best Of The Bolos Their Finest Hour

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Shadow Of Freedom

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A rising thunder

By David Weber

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"After a brutal attack on the Manticoran home system, Honor Harrington has rooted out a plan designed to enslave the entire human species. Behind that plans lies the shadowy organization known as t...

Beautiful Friendship

By David Weber

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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.