Patrick Holford Books

Vitamin Vitality

By Patrick Holford

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The stress cure

By Patrick Holford

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Stress is very much part of life in the 21st century, and has overtaken the common cold as the major reason for taking time off work. But while we cannot avoid life's pressures, we can influence th...

Improve your digestion

By Patrick Holford

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It is becoming more and more widely recognised that a healthy gut is crucial to all-round good health, a fact demonstrated by the growing interest in this once taboo subject. Many recent books focu...

Vitamin Vitality

By Patrick Holford

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The Whole Health Guide to Elemental Health

By Patrick Holford

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Mental Illness and Schizophrenia

By Carl C. Pfeiffer

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The family nutrition workbook

By Patrick Holford

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The whole health manual

By Patrick Holford

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The Holford low GL diet

By Patrick Holford

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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.