Tessa Arlen Books

In Royal Service to the Queen

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Now a USA TODAY Bestseller!“Engrossing. Fans of The Crown will devour this.”--Publishers WeeklyThe revealing story of Queen Elizabeth II's beloved governess, Marion Crawford, who spent...

"A Death by Any Other Name is a delightful Edwardian mystery set in the English countryside. Building on the success of her last two mysteries in the same series, Tessa Arlen returns us to the same...

Death of an unsung hero

By Tessa Arlen

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"In 1916, the world is at war and the energetic Lady Montfort has persuaded her husband to offer his family's dower house to the War Office as an auxiliary hospital for officers recovering from she...

Death of a dishonorable gentleman

By Tessa Arlen

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"Lady Montfort has been planning her annual summer costume ball for months, and with scrupulous care. Pulling together the food, flowers and a thousand other details for one of the most significant...

Poppy Redfern and the Midnight Murders

By Tessa Arlen

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Poppy Redfern and the Midnight Murders

By Madeleine Leslay, Tessa Arlen

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A Dress of Violet Taffeta

By Tessa Arlen

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A sumptuous novel based on the fascinating true story of La Belle Époque icon Lucy, Lady Duff Gordon, who shattered the boundaries of fashion with her magnificently sensual and enchantingly...

Death Sits down to Dinner

By Tessa Arlen

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Cozy Case Files

By Julia Chapman, Frances Brody, Ellie Alexander, Marla Cooper, Tessa Arlen

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Death of an Unsung Hero

By Tessa Arlen

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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.