Harvey Jonathan Books

The secrets we keep

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It's hard being that woman, the one whose husband disappeared. He went out five years ago for a pint of milk and never came back. So here I am with a daughter who blames me for everything, a son tr...

The secrets we keep

By Harvey Jonathan

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In quest of spirit

By Harvey Jonathan

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Harvey explores aspects of music that he connects with spirituality: self-identity, ambiguity, unity, stasis, and silence. In the course of his explorations he offers corroborating statements about...

The music of Stockhausen

By Harvey Jonathan

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Music and inspiration

By Harvey Jonathan

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Beautiful thing

By Harvey Jonathan

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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.