Geoffrey Waller Books

Time Faith And Energy

By Geoffrey Waller

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Sealife

By Geoffrey Waller

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Brimming with illustrations and descriptions of more than six hundred species, SeaLife is the most comprehensive reference available in a single volume to the vast panorama of vertebrate and invert...

Sealife

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Time Faith And Energy

By Geoffrey Waller

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Great Whales

By Marc Dando, Geoffrey Waller

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Sealife

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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.