Simon Guerrier Books

Doctor Who stories are many things: thrilling adventures, historical dramas, tales of love and war and jelly babies. They're also science fiction - but how much of the science is actually real, and...

Dol op minifiguren Lego

By Anstruther Jen Green Jonathan Lloyd Kate Guerrier Simon

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Scientific Secrets of Doctor Who

By Marek Kukula, Simon Guerrier

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Doctor Who Whographica An Infographic Guide to Space and Time

By Steve O Brien, Simon Guerrier, Ben Morris

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Doctor Who the Book of Whoniversal Records

By Simon Guerrier

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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.