John Gruesser Books

The Unruly Voice

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The Unruly Voice explores the literary and journalistic career of Pauline Elizabeth Hopkins, a turn-of-the-century African American writer who was editor in chief of the Colored American Magazine,...

Animals in the American Classics

By John Bird, Deborah Clarke, William I. Lutterschmidt, Susan Elizabeth Sweeney, Stacey Peebles, William Engel, Cherene Sherrard Johnson, Brian Yothers, Susan F. Beegel, Robert Donahoo, Anthony Reynolds, Barbara Heavilin, Philip Edward Phillips, John Gruesser

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The Unruly Voice

By John Gruesser

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Hagar s Daughter

By Alisha Knight, Pauline Hopkins, John Gruesser

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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.