Jack Heggie Books

The Use of the Eyes in Movement

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In Running with the Whole Body, Heggie proposes a thirty-day exercise program that will not only prevent you from injuring yourself in a new way, but enable you to become a smoother, and more power...

A Healthy Back in Less Than 20 Minutes a Day

By Jack Heggie

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Total Body Golf

By Jack Heggie

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Total Body Vision

By Jack Heggie

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Running with the Whole Body

By Jack Heggie

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Total Body Vision

By Jack Heggie

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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.