John Heaton Books

Includes a brief history, the basic techniques, and advice for improvement for each of nine track or field events including steeplechasing, pole vaulting, hurdling, and middle distance running.

Better athletics--field (with cross country and race walking)

By John Heaton

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Text and photographs describe the equipment, training, and techniques for such activities as shot putting, discus throwing, cross country running, and others.

Better Athletics Track with Jumping

By John Heaton

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Better athletics--field (with cross country and race walking)

By John Heaton

Average: 0.00, 0 Ratings

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.