Eric Saward Books

Doctor Who: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe

By George Mann, Justin Richards

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Doctor Who the Twin Dilemma Doctor Who No 103

By Eric Saward

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Doctor Who

By Eric Saward

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Doctor Who: Attack Of The Cybermen

By Eric Saward

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A diamond raid in modern-day London... a secret base hidden deep in the heart of the city's sewer system... a cold and desolate planet light years from Earth... and a daring plan to alter the entir...

Doctor Who and the visitation.

By Eric Saward

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Doctor Who

By Eric Saward

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Doctor Who

By Eric Saward

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Doctor Who BBC Radio Collection

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Doctor Who

By Barry Letts

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Doctor Who

By Paul Magrs, Steve Cole, Jo Cotterill, Mike Tucker, Jenny T Colgan, Trevor Baxendale

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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.