Daniel Duncan Books

Mr. Posey's New Glasses

By Ted Kooser Illustrated By Daniel Duncan

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In a charming tale of an elderly man and his obliging young friend, former poet laureate Ted Kooser and newcomer Daniel Duncan invite us to look at the world with fresh eyes.Mr. Posey is feeling gl...

Animal Rescue Agency 1 Case File

By Eliot Schrefer

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Animal Rescue Agency 1 Case File

By Eliot Schrefer

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Wholesome Advice Against the Abuse of Hot Liquors Particularly of Coffee Chocolate Tea ... by Dr. Duncan ... Done Out of French

By Daniel Duncan

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Willis Wilbur Wows the World

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Willis Wilbur has the entire summer in front of him. So it's time to fulfill his destiny: becoming the neighborhood life coach.Nine-year-old Willis Wilbur had his summer figured out. He and his bes...

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.