Judith Vollmer Books

Common Wealth: Contemporary Poets on Pennsylvania

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Over the years, Pennsylvania has been graced with an abundance of writers whose work draws imaginatively on the state's history and culture. Common Wealth sings the essence of Pennsylvania through...

The Apollonia Poems Wisconsin Poetry Series

By Judith Vollmer

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Sound Boat

By Judith Vollmer

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Iconoscope

By Peter Oresick, Judith Vollmer

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Water Books

By Judith Vollmer

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Jahrbuch der Heinrich Heine Universitat Dusseldorf 2007 2008

By Rektor Der Rektor Der Heinrich Heine Universitat Dusseldorf

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Jahrbuch der Heinrich Heine Universitat Dusseldorf 2007 2008

By Rektor Der Rektor Der Heinrich Heine Universitat Dusseldorf

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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.