Sydney Gordon Books

Isaac Newton, 1642-1727

By Sydney Gordon

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Archimedes about 287 212 B.C.

By Sydney Gordon

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A new series of the lives and discoveries of famous scientists written by a schoolmaster with years of experience of teaching science to juniors. Each book consists of a lively account of the life,...

Michael Faraday, 1791-1867

By Sydney Gordon

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The Scalpel The Sword The Story of Doctor Norman Bethune

By Alan Herman, Ted Gordon Sydney Allan

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Don't you know anybody else?

By Ted Allan

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The scalpel, the sword

By Ted Allan

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The Scalpel and the Sword

By Sydney Gordon, Ted Allan

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The Scalpel and the Sword

By Sydney Gordon, Ted Allan

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Docteur Bethune

By Sydney Gordon

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The scalpel, the sword

By Ted Allan

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The Scalpel, the Sword celebrates the turbulent career of Dr. Norman Bethune (1890-1939), a brilliant surgeon, campaigner for socialized medicine, and communist.

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.