Robert I. Frost Books

The Oxford History of Poland-Lithuania: Volume I: The Making of the Polish-Lithuanian Union, 1385-1569

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The history of eastern Europe is dominated by the story of the rise of the Russian empire, yet Russia only emerged as a major power after 1700. For 300 years the greatest power in Eastern Europe wa...

The Oxford history of Poland-Lithuania

By Robert I. Frost

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After the Deluge: Poland-Lithuania and the Second Northern War, 1655-1660

By Robert I. Frost

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The Northern Wars: War, State and Society in Northeastern Europe, 1558 - 1721

By Robert I. Frost

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The northern wars

By Robert I. Frost

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After the Deluge

By Robert I. Frost

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After the Deluge

By Robert I. Frost

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After the Deluge

By Robert I. Frost

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Northern Wars

By Robert I. Frost

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Northern Wars

By Robert I. Frost

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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.