Duffey Books

A boy in the doghouse

By Betsy Duffey

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George is faced with the task of training his new puppy Lucky.

Natural History of Britain and Ireland

By Duffey, Angel, E. Miles

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Anton van Wouw

By Alexander Edward Duffey

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Puppy love

By Betsy Duffey

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When fourth graders Evie and Megan start the Pet Patrol to solve animal problems, they soon have their hands full taking care of an army of homeless puppies.

Wildlife Conservtn Wstn Europe

By Duffey

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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.

Duffey Books

Russian For Beginners

Math Wiz

A Boy In The Doghouse

A boy in the doghouse

Boy in the Doghouse A

Natural History of Britain and Ireland

Anton van Wouw

Puppy love

Wild Things Pet Patrol

Wildlife Conservtn Wstn Europe

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?