Robert Hopper Books

The Halifax Steps

By Robert Hopper, Anthony Caro

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The HSA Strategy

By Robert Hopper

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Stick with exercise for a lifetime

By Robert Hopper

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Exercise physiologist and wellness expert Robert Hopper's step-by-step guide offers a refreshing new formula for succeeding with exercise for the long haul and finding pleasure in the process!

Michelangelo Pistoletto

By Michelangelo Pistoletto

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Michelangelo Pistoletto

By Robert Hopper, Veronique Goudinoux, Michael Tarantino, Juan Antonio Ramirez, Claes Oldenburg, Michelangelo Pistoletto

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Vittorio Messina

By Robert Hopper, Pier Giovanni Castagnoli, Vittorio Messina

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Vittorio Messina

By Robert Hopper, Pier Giovanni Castagnoli, Bruno Cora

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North Idaho s Superfund Facts and Fraud

By Robert Hopper, Fred C. Traxler

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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.