John Connor Books

Falling

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A man is shot and his pregnant wife stabbed to death in their home by intruders. A burglary gone wrong? The only witness to the brutal attack is their six-year-old daughter, and DC Karen Sharpe is...

Falling

By John Connor

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A man is shot and his pregnant wife stabbed to death in their home by intruders. A burglary gone wrong? The only witness to the brutal attack is their six-year-old daughter, and DC Karen Sharpe is...

Carl Bowman is a killer. An assassin for hire whose latest assignment is to take out a ten-year-old girl. He doesn't know what she's done or why someone wants her dead. He just knows he has to kill...

The ice house

By John Connor

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The vanishing

By John Connor

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Twenty years ago, one-year-old Lauren disappeared. Now, ex-policeman Tom Lomax gets a mysterious offer from an heiress, Sara. She wants him to fly to her private island, all expenses paid. He canno...

The ice house

By John Connor

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The vanishing

By John Connor

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Twenty years ago, one-year-old Lauren disappeared in the most terrifying way imaginable. Snatched from a creche during a momentary blackout, Lauren was never seen again and her mother still grieves...

Phoenix

By John Connor

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Jeux de pouvoir

By John Connor

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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.