John Nathan-Turner Books

Doctor Who The Tardis Inside Out

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Provides a behind-the-scenes look at the popular television series and discusses the six actors who have portrayed Dr. Who in the past twenty-one years.

Dr.who Companions

By John Nathan Turner

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Doctor Who

By John Nathan Turner

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Doctor Who

By John Nathan Turner

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Doctor Who The Tardis Inside Out

By John Nathan Turner

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Doctor Who The Tardis Inside Out

By John Nathan Turner

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Dr Who John Nathan Turner Memoirs Dr Who Big Finish Talks Back

By John Nathan Turner

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Dr. Who The Companions

By John Nathan Turner

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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.