Nancy McKenzie Books

Queen of Camelot

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Return to a time of legend—the days of Guinevere and Arthur and the glory that was to become Camelot On the night of Guinevere’s birth, a wise woman declares a prophecy of doom for the child: She...

Guinevere s gamble

By Nancy McKenzie

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Thirteen-year-old Guinevere learns more about her destiny when she travels with her aunt and uncle to an important council of Welsh kings and discovers that she has a powerful enemy in the High Kin...

Guinevere s Gift

By Nancy McKenzie

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Guinevere's gamble

By Nancy McKenzie

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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.