John Roger Books

You Can'T Afford The Luxury Of A Negative Thought : A Guide To Positive Thinking
Do It!
Do It!

By John Roger, John Roger McWilliams, John-Roger, Peter McWilliams, John-Roger, Peter McWilliams, John Roger

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"Do It!" identifies the stumbling block to the realization of our dreams as "The Comfort Zone" - a trouble-free zone we are happy to remain in, where our lives become less and less rewarding. This...

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Life 101: Everything You Wish You Had Learned In School...But Didn'T
You Can'T Afford The Luxary Of A Negative Thought
Life 101: Everything We Wish We Had Learned About Life In School-But Didn'T
Despertar Dentro De La Luz
Despertar Dentro De La Luz

By John Roger

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The Signs Of The Times (Vol I)
Making An Exceptional Difference
Making An Exceptional Difference

By John Roger, Harvey Pressman

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Bibliography: p. 288-296

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Blessings Of Light
Blessings Of Light

By John Roger

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Possessions, Projections And Entities

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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.

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