Philippa Castle Books

Reluctant Duke, The

By Castle, Philippa Castle, Philippa, Marilyn M. Lowery

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MISMATCHED HEARTS If he looked at her, she felt weak and if he did not, she was in despair. Of course, the Duke of Stanfield saw blonde, violet-eyed Julia Hartman -- when he noticed her at all -- o...

The Dandy s Deception

By Philippa Castle, Marilyn M. Lowery

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The Reluctant Duke

By Philippa Castle

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The Masked Stranger

By Philippa Castle

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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.