Jeffrey Round Books

Cage of Bones

By Jeffrey Round

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Vanished in Vallarta

By Jeffrey Round

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Bon Ton Roulet

By Jeffrey Round

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Pumpkin eater

By Jeffrey Round

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"Following an anonymous tip, missing persons investigator Dan Sharp makes a grisly find in a burned-out slaughterhouse in Toronto's west end. Someone is targeting known sex offenders whose names an...

Pumpkin eater

By Jeffrey Round

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Pumpkin eater

By Jeffrey Round

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The jade butterfly

By Jeffrey Round

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"A seemingly casual encounter in a downtown bar sends missing persons investigator Dan Sharp in search of a woman presumed dead in the Tiananmen Square Massacre. Twenty years after her disappearanc...

The honey locust

By Jeffrey Round

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Bend Sinister

By Peter Burton

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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.