Helene Gayle Books

Framework for Equitable Allocation of COVID 19 Vaccine

By Lisa Brown, Health And Medicine Division, Board On Population Health And Public Health Practice, National Academies Of Sciences Engineering And Medicine, Board On Health Sciences Policy, William Foege, Helene Gayle, Committee On Equitable Allocation Of Vaccine For The Novel Coronavirus, Benjamin Kahn

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Global Mobilization for HIV Prevention

By Helene Gayle

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Her Health Her Lifetime Our World

By John Hammergren, Helene Gayle

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Life Unimagined

By Deb Childs, Williams S. Aaron, Helene Gayle

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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.