Vincent W. Rospond Books

The Polish army in 1939

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"The Polish Army in 1939 examines the September Campaign showing the background, organization and planning of the Army that faced the German and Soviet forces in the early days of World War II. Des...

Orphan Eagles

By Vincent W. Rospond

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Polish Lithuanian Regiments 1717 1794

By Bronislaw Gembarzewski, Vincent Rospond

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America at War

By Vincent Rospond

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Polish Armies of the Partitions 1770 94

By Vincent W. Rospond, Raffaele Ruggeri

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Polish Armies Of The Partitions 177094

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Polish Armies of the Partitions 1770 94

By Vincent W. Rospond, Raffaele Ruggeri

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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.