Derek Hart Books

Secret of the Dragon s Eye

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Secret of the Dragon’s Eye is a tale of fantasy for all ages, with a high-spirited dragon named Thaddeus Osbert and three adolescents who befriend him. Faced with danger and intrigue, the children...

Farey Tales the Lifeguard and Other Mathematics Investigations for Higher Level General Certificate of Secondary Education

By Derek Hart, Tony Croft

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Before The Dead Walked

By David Burke, Derek Hart

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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.

Derek Hart Books

Seas Aflame

Ice Flotilla

Secret of the Dragon s Eye

Modelling with projectiles

Farey Tales the Lifeguard and Other Mathematics Investigations for Higher Level General Certificate of Secondary Education

Apollo s Plague

For Love or Honor Bound

Nike s Chariot

Before The Dead Walked

Secret of the Dragon s Wings

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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?