Mark H. Beers Books

The Merck Manual of Health & Aging

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"A VALUABLE RESOURCE FOR ANYONE WHO SEEKS A HEALTHIER OLD AGE FOR THEMSELVES OR THEIR LOVED ONES.”–William D. Novelli, CEO, AARPIf aging were an open book, it would be The Merck Manual of Health &...

Aging in good health

By Mark H. Beers

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The Merck Manual of Medical Information

By Mark H. Beers

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The Merck Manual of Medical Information

By Mark H. Beers

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The Merck Manual of Diagnosis and Therapy 17th Edition Centennial Edition

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The Merck Manual of Medical Information

By Mark H. Beers, Merck, Ardrew J. Fletcher

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The Merck Manual 18th Edition

By Mark H. Beers

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The Merck Manual of Medical Information

By Mark H. Beers, Andrew J. Fletcher

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The Merck Manual of Health Aging

By Mark H. Beers, Thomas V. Jones

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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.