David R. Hamilton Ph.D. Books

Why Woo-Woo Works

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Why should we meditate? How can crystals heal the mind and body? Why is visualization so powerful - and so effective?Alternative therapies, healing modalities, and spiritual practices are often ref...

How Your Mind Can Heal Your Body

By David R. Hamilton PhD

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An authoritative and accessible book by a qualified scientist, showing incredible proof of the mind-body connection.There is no longer any doubt that the way we think affects our bodies: countless...

Why Woo-Woo Works

By David R. Hamilton Ph.D.

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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.