Robert J. Robertson Books

Perceived exertion

By Bruce J. Noble

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Perceived Exertion Laboratory Manual

By Michael Gallagher Jr., Robert J. Robertson, Luke Haile

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This unique laboratory manual describes an empirical framework for tailoring individualized exercise programs to client attitudes and perceptions. It presents laboratory experiments that analyze pe...

Fair Ways

By Robert J. Robertson

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Fair Ways

By Robert J. Robertson

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Perceived Exertion for Practitioners

By Robert J. Robertson

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Perceived Exertion Laboratory Manual

By Robert J. Robertson, Luke Haile, Gallagher Michael Jr.

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Perceived Exertion Laboratory Manual

By Robert J. Robertson, Luke Haile, Gallagher Michael Jr.

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Her Majesty's Texans

By Robert J. Robertson

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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.