Allan J. Hamilton Books

Lead with your heart

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Working with horses can be a transformative experience. Their soft eyes, wild spirit, and shy honesty offer a glimpse of how entirely different the horse's mind is from our own. Allan J. Hamilton...

Younger Next Year 2nd Edition

By Chris Crowley, Henry S. Lodge, Allan J. Hamilton

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Cerebral Entanglements

By Allan J. Hamilton

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The Scalpel and the Soul

By Allan J. Hamilton

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The Scalpel and the Soul

By Allan J. Hamilton

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The Scalpel and the Soul

By Allan J. Hamilton M.D. FACS

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A Harvard-educated neurosurgeon reveals his experiences—in and out of the operating room—with apparitions, angels, exorcism, after-death survival, and the miracle of hope. For the milli...

Younger Next Year for Women

By Chris Crowley, Gail Sheehy, Henry S. Lodge, Allan J. Hamilton

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Younger Next Year Gift Set for Men

By Chris Crowley, Henry S. Lodge, Allan J. Hamilton

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Younger Next Year Gift Set for Women

By Chris Crowley, Henry S. Lodge, Allan J. Hamilton

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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.