Julia Quinn Books

Four weddings and a sixpence

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Four friends from Mrs. Rochambeaux's Gentle School for Girls find an old sixpence in their bedchamber and decide that it will be the lucky coin for each of their weddings.

The girl with the make believe husband

By Julia Quinn

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"While you were sleeping... With her brother Thomas injured on the battlefront in the Colonies, orphaned Cecilia Harcourt has two unbearable choices: move in with a maiden aunt or marry a scheming...

First Comes Scandal: A Bridgertons Prequel

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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.