Katie Nicholl Books

Kate

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From her decade-long courtship with Prince William, to their fairy-tale wedding and rejuvenation of the monarchy, Kate Middleton has enchanted the public and media alike. How has this once shy, mid...

Kate

By Katie Nicholl

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William and Harry

By Katie Nicholl

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Drawing on her unique set of contacts Katie Nicholl recounts the royal brothers' extraordinary lives and reveals William and Harry's real characters as they become front line soldiers and modern pr...

Kate

By Katie Nicholl

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Harry

By Katie Nicholl

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"Respected biographer Katie Nicholl details the most insightful book on Prince Harry to date, based on exclusive interviews with former Palace aides, courtiers, friends, and family members, and inc...

William in love

By Katie Nicholl

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Harry. Biografia

By Katie Nicholl

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New Royals

By Katie Nicholl

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New Royals

By Katie Nicholl

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New Royals

By Katie Nicholl

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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.