John Duvall Books

Don DeLillo's Underworld

By John N. Duvall

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The Great Spruce

By John Duvall, Rebecca Gibbon

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Together with his grandpa, a young boy finds a way to save his favorite tree in this heartwarming Christmas tale Alec loves to climb trees—the little apple trees, the wide willow trees, even the ta...

The Cambridge companion to American fiction after 1945

By John N. Duvall

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"Each generation revises literary history and this is nowhere more evident than in the post-Second World War period. This Companion offers a comprehensive, authoritative and accessible overview of...

Identifying Fictions of Toni Morrison

By John Duvall

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The Great Spruce

By John Duvall Illustrated By Rebecca Gibbon

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Together with his grandpa, a young boy finds a way to save his favorite tree in this heartwarming Christmas tale Alec loves to climb trees—the little apple trees, the wide willow trees,...

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.