James Duffy Books

The doll hospital

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Unwell for a long time herself, Alison sets up a doll hospital where she can help others, and eventually goes into the hospital herself for an experimental treatment that might cure her once and fo...

Cleaver of the Good Luck Diner

By James Duffy

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Computer Concepts

By James Duffy

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Domestic Affairs

By James Duffy, James H. Duffy

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Shipwreck Empire

By James Duffy

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Portuguese Africa

By James Duffy

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Missing

By Duffy James

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A ten-year-old with a history of running away is kidnapped by a lonely confused man to become his own little girl.

Cleaver of the Good Luck Diner

By Duffy James

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Clever Cleaver, the big dog at the Good Luck Diner, keeps things stirred up for the family that runs the diner and works at effecting a reconciliation between the estranged parents.

The man in the river

By Duffy James

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Twelve-year-old Sandy and ten-year-old Kate, whose father has become the town drunk, receive investigative help from a retired policewoman when their father drowns mysteriously in the river after b...

Cleaver and Company

By James Duffy

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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.