John Skoyles Books

Up From Dragons: The Evolution of Human Intelligence

By John Skoyles, Dorion Sagan

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Secret frequencies

By John Skoyles

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"In his memoir, John Skoyles guides us through 1960s New York, a city we only thought we knew. Against a backdrop of late-night radio airwaves featuring talk-show kings like Long John Nebel, the si...

Secret Frequencies

By John Skoyles

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Permanent Change

By John Skoyles

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Definition of the Soul Carnegie Mellon Poetry

By John Skoyles

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The Situation Carnegie Mellon Poetry

By John Skoyles

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Inside Job

By John Skoyles

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Suddenly it s evening

By John Skoyles

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"Pulitzer Prize-winning poet Alan Dugan described Skoyles's poems as "clear-eyed but passionate, sarcastic but grave, all at the same time." That description holds true for this selection of poems...

Little Faith

By John Skoyles

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Little Faith

By John Skoyles

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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.