Penelope Friday Books

Petticoats And Promises

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"Equal in station and age, it was foreseeable that neighbors Clara Battersley and Serena Coleridge would become fast friends. More surprising is that they would become lovers--a secret they tell no...

The Sisterhood

By Penelope Friday

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Pansy Learns a Lesson

By Penelope Friday

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Thrace

By Penelope Friday

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Loving My Lady

By Penelope Friday

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Loving My Lady

By Penelope Friday

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Love Sex Pleasure and Pain

By Penelope Friday

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Little Plaid Skirt Saga Volume 1 2

By Penelope Friday, Elise Hepner

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Love Lust and Loss

By Penelope Friday

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Punishing Pansy

By Penelope Friday

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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.