Geoff Blackwell Books

Work Out Mathematics GCSE

By G. D. Buckwell, Geoff Blackwell

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Happiness

By Geoff Blackwell

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Good Friends

By Geoff Blackwell

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My Baby Record

By Geoff Blackwell

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200 women

By Geoff Blackwell

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This book contains 200 interviews with women from around the world, from actresses, to social activists, politicians, artists, and more, accompanied by beautiful photographic portraits specially co...

Swords of Steel Omnibus

By Jason Tarpey, Byron A. Roberts, E.C. Hellwell, D.M. Ritzlin, Scott Waldrop, Michael Scalzi, Max Birbaum, D.L. Lackner, Howie K. Bentley, Geoff Blackwell

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Dear Dad

By Geoff Blackwell

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Dear Mom

By Geoff Blackwell

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My Baby Record Book

By Geoff Blackwell

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Humanity

By Geoff Blackwell

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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.