Robert Willoughby Books

Children's Guide to the Bible

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Summarizes the main events recounted in the Bible from Genesis to the Book of Revelation, providing background information on people, historical happenings, social life and customs, and beliefs men...

Boston and Albany

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North Korea

By Robert Willoughby

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North Korea 2nd Bradt Travel Guide

By Robert Willoughby

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North Korea

By Robert Willoughby

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So Who Is God

By Robert Willoughby

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Children s Guide to the Bible

By Robert Willoughby

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Bernard Bunting and the Missing Birthday Rollercoasters

By Robert Willoughby

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Llawlyfr Y Beibliblant

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Really Useful Guides

By Robert Willoughby

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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.