James J. Wilhelm Books

Seven troubadours

By James J. Wilhelm

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Ezra Pound

By James J. Wilhelm

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This third and final volume of Wilhelm's life of Ezra Pound commences with Pound's departure from Paris at the height of his writing career for Italy, where he hoped to find a quieter life, and it...

Cruelest Month: Spring, Nature and Love in Classical and Medieval Lyrics

By James J. Wilhelm

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The Love Songs of the Carmina Burana

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The later cantos of Ezra Pound

By James J. Wilhelm

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Lyrics of the Middle Ages

By James Wilhelm

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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.