Ivor Cummins Books

Diabetes Unpacked

By Zoe Harcombe PhD, Caryn Zinn PhD, Jason Fung MD, Prof Tim Noakes, Jeff Gerber MD, Robert Cywes MD, Nina Teicholz, Ivor Cummins, Malcolm Kendrick MD, David Unwin MD

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You can take control of your health, lose weight, prevent disease, and enjoy a long and healthy life. The unique nutritional program outlined in Eat Rich, Live Long is designed by experts to help y...

Eat Rich, Live Long

By Ivor Cummins

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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.