Ivor Thomas Books

Selections illustrating the history of Greekmathematics

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GREEK MATHEMATICAL WORKS. The wonderful achievement of Greek mathematics is illustrated in two volumes. 1. The divisions of mathematics; mathematics in Greek education; calculation; arithmetical no...

Greek Mathematical Works Selections From Aristarchus to Pappus v. 2 Loeb Classical Library

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Greek Mathematical Works

By Ivor Bulmer Thomas, Ivor Thomas

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Greek Mathematical Works

By Ivor Thomas

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Top Sawyer

By Ivor Bulmer Thomas

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War and Democracy

By E. F. M. Durbin

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War and Democracy

By D. P. T. Jay, Ivor Thomas, E. F. M. Durbin, John Bowlby, R. B. Fraser

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War and Democracy

By D. P. T. Jay, Ivor Thomas, E. F. M. Durbin, John Bowlby, R. B. Fraser

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War and Democracy

By D. P. T. Jay, Ivor Thomas, E. F. M. Durbin, John Bowlby, R. B. Fraser

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The Incompetent Cook

By Ivor Thomas

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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.