Janis Mackay Books

The Heaven Maker and other Gruesome Tales

By Craig Herbertson, Janis Mackay

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Magnus Fin and the ocean quest

By Janis Mackay

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Magnus Fin and the Selkie Secret

By Janis Mackay

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Magnus Fin and the Moonlight Mission

By Janis Mackay

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Magnus Fin and the Selkie Secret

By Janis Mackay

Average: 0.00, 0 Ratings

The Heaven Maker and Other Gruesome Tales

By Craig Herbertson, Janis Mackay

Average: 0.00, 0 Ratings

The reluctant time traveller

By Janis Mackay

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"If Saul and Agnes don't do something their den will be destroyed. But the title deeds that could save it were lost in 1914. Good job they know the secret of time travel! Still, is travelling back...

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.