John Reppion Books

Albion

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Darklore Volume IV

By John Reppion, Oana Ghiocel, John Higgs, The Emperor, Nigel Watson, Michael Tymn, Blair MacKenzie Blake, Greg McQueen, Nick Redfern, Robert Schoch, Filip Coppens, Robert Bauval, Greg Taylor, Theo Paijmans, Richard Freeman, Neil Arnold

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Darklore is an anthology of exceptional observations, hidden history and esoteric science. Bringing together some of the top researchers and writers on topics from outside of mainstream science and...

Gene Simmons House of Horrors TPB

By John Reppion, Leah Moore, Jon Alderink, Dwight L. MacPherson, Zornow, Tom Waltz, Grant Bond, Todd McFarlane, Chris Ryall, Esteve Polls

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Darklore Volume IV

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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.