Grete Waitz Books

Guide to Running

By Grete Waitz, Gloria Averbuch

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Conquer stress with Grete Waitz

By Grete Waitz

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Run your first marathon will give you the determination to train, the willpower to perservere, and the tenacity to reach the finish line. Complete with colour, race-day photography and case studies...

On the Run

By Grete Waitz, Gloria Averbuch

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Run Your First Marathon

By Grete Waitz, Gloria Averbuch

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Run your first marathon

By Grete Waitz

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Run your first marathon

By Grete Waitz

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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.