Christopher C. Vaughan Books

The Prenatal Prescription

By Christopher C. Vaughan, P. W. Nathanielsz, Peter W. Nathanielsz

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Most mothers- and fathers-to-be are not aware that the environment the mother creates in her womb will have a permanent impact on their child's lifelong health-including susceptibility to heart dis...

The Promise of Sleep: The Scientific Connection Between Health, Happiness and a Good Night's Sleep

By William C. Dement, DEMENT W.C And C. VAUGHAN., Christopher C. Vaughan

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How life begins

By Christopher C. Vaughan

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The Promise of Sleep

By William C. Dement, Christopher C. Vaughan

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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.