Patrick Holford Books

Mental Illness and Schizophrenia

By Carl C. Pfeiffer

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Sue Kreitzman s Low Fat Lifeplan

By Sue Kreitzman

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Zui jia ying yang zhi nan

By En Bo, Erfude Huo, Donglian Lu

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Ben shu zai quan wei de ke xue yan jiu ji chu shang,Gao su ni shi wu ru he ying xiang jian kang,Ying yang wu zhi ru he ping heng shen ti de xu qiu,Bing zhen dui ge zhong man xing bing ti chu le zui...

Ying yang sheng jing

By Patrick Holford

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Upgrade Your Brain

By Patrick Holford

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Say No to Arthritis

By Patrick Holford

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Quick Guide to the Low GL Diet

By Holford BSc DipION FBANT NTCRP Patrick

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Quick Guide to Smart Food for Smart Kids

By Holford BSc DipION FBANT NTCRP Patrick, Fiona McDonald Joyce

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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.