Duffy James Books

Noah and Annie are unconcerned about the fate of the grasshoppers they catch and feed to the ducks in their pond, until two bigger boys threaten the ducks' safety and heighten their awareness of an...

The revolt of the teddy bears

By Duffy James

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Teddy bears are running amok in Paris and Chief Inspector May Gray, a poodle, is determined to find out why.

The doll hospital

By Duffy James

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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...

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...

Uncle Shamus

By Duffy James

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Ten-year-old Akers and his friend Marleena are intrigued by the blind black ex-convict who moves in to their Oklahoma shanty town and enlists their help in a secret plan.

The Graveyard Gang

By Duffy James

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During the summer after seventh grade, life in a small New Hampshire town improves for Amy, when new friendships help her deal with her father's death, her mother's emotional problems, and the accu...

Radical Red

By Duffy James

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The life of a twelve-year-old Irish girl living in Albany, New York, in the 1890s undergoes many changes when she and her mother become involved with Susan B. Anthony and her suffragist.

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.