John Powell Books

Why am I Afraid to Tell You Who I am?

By John Powell

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Why Am I Afraid to Tell You Who I Am?

By John Powell

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Dictionary of Literary Influences

By John Powell

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Biographical Dictionary of Literary Influences: The Nineteenth Century, 1800-1914

By John Powell

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Dictionary of Literary Influences

By John Powell

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"Treating the cultural giants of the 20th century, this volume traces their reading habits and intellectual development, as well as their contributions to Western culture. Suggesting the literary i...

How Music Works: The Science and Psychology of Beautiful Sounds, from Beethoven to the Beatles and Beyond

By John Powell

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Mesquite Cookery

By Powell John

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Why you love music

By Powell John

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With his conversational style, humor, and endless knowledge, scientist and musician John Powell explores a fascinating study of how our brains respond to the joys of music.

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.