Nicola Upson Books

Expert in Murder, An: A Josephine Tey Mystery

By Nicola Upson

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Two for Sorrow: A New Mystery Featuring Josephine Tey

By Nicola Upson

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Tey is writing a novel based on Amelia Sach and Annie Walters, the notorious "Finchley baby farmers," unaware that her research will entangle her in the desperate hunt for a modern-day killer.

"Intrepid writer and amateur sleuth Josephine Tey returns in this sixth installment of Nicola Upson's popular series--perfect for fans of Agatha Christie's Hercule Poirot and Jaqueline Winspear's M...

An expert in murder

By Nicola Upson

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An expert in murder

By Nicola Upson

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The death of Lucy Kyte

By Nicola Upson

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When bestselling crime author Josephine Tey inherits a remote Suffolk cottage from her godmother, it came full of secrets. Sorting through the artefacts of her godmother's life, Josephine is intrig...

London Rain

By Nicola Upson

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Two for Sorrow Lib E

By Nicola Upson, Davina Porter

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Angel with two faces

By Nicola Upson

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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.