Philip Pomper Books

Peter Lavrov and the Russian revolutionary movement.

By Philip Pomper

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The Structure of Mind in History

By Philip Pomper

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Lenin, Trotsky, and Stalin

By Philip Pomper

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Lenin Trotsky and Stalin

By Philip Pomper

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Lenin s brother

By Philip Pomper

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Probing the Ulyanov family archives, historian Philip Pomper uncovers Alexander Ulyanov's transformation from ascetic student to terrorist, and the impact his fate had on his younger brother Lenin....

World History

By Richard Vann, Richard H. Elphick

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World History

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History and Theory

By Philip Pomper, Richard T. Vann

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History and Theory

By Philip Pomper, Richard T. Vann

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The Return of Science

By Philip Pomper, David Gary Shaw

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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.