Roy M. Wallack Books

The Traveling Cyclist

By Roy M. Wallack

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Bike for Life How to Ride to 100 and Beyond revised edition

By Roy M. Wallack

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Bike for Life

By Roy M. Wallack, Bill Katovsky

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Barefoot running step by step

By Roy M. Wallack

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"Barefoot running has garnered lots of attention due to the mega-bestseller Born to Run while products like the Vibram(r) FiveFinger Shoes have tripled in sales and top athletic companies like Nike...

Bicycling maximum overload for cyclists

By Jacques DeVore

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"Bicycling Maximum Overload for Cyclists is a radical strength-based training program aimed at increasing cycling speed, athletic longevity, and over-all health in half the training time. Rather th...

Bike for Life

By Roy M. Wallack

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Bike for Life

By Roy M. Wallack, Bill Katovsky

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Run for Life

By Roy M. Wallack

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Be a better runner

By Sally Edwards

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Run for life

By Roy M. Wallack

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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.