Jassy Mackenzie Books

Pale Horses

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Book 4 in the PI Jade de Jong thriller series set in South AfricaJohannesburg, South Africa: At first, the case appears to be one of simple misadventure. Sonet Meintjies, a base jumper, falls to he...

Bad seeds

By Jassy Mackenzie

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"Relentless South African private investigator Jade de Jong tracks a saboteur in a race to prevent a nuclear disaster in Jassy Mackenzie's new, pulse-pounding thriller. Despite her checkered histor...

Bad Seeds

By Jassy Mackenzie

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Relentless South African private investigator Jade de Jong tracks a saboteur in a race to prevent a nuclear disaster in Jassy Mackenzie’s new, pulse-pounding thriller.  Despite her chec...

Folly

By Jassy Mackenzie

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Switch

By Jassy Mackenzie

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Soaring

By Jassy Mackenzie

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Drowning

By Jassy De Jong

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Sensuous but stifled New York City photographer Erin Mitchell thinks going to South Africa on assignment will be the perfect getaway. But when a flash flood washes away Erin's vehicle and she is st...

Drowning

By Jassy De Jong

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Drowning

By Jassy De Jong

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Soaring

By Jassy Mackenzie

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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.