Katharine Schellman Books

Last Note of Warning

By Katharine Schellman

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Silence in the Library

By Katharine Schellman

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Regency widow Lily Adler didn't expect to find a corpse when visiting a family friend. Now it's up to her to discover the killer in the charming second installment in the Lily Adler mysteries.Regen...

Last Call at the Nightingale

By Katharine Schellman, Sara Young

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The Last Drop of Hemlock

By Katharine Schellman

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Silence in the Library

By Henrietta Meire, Katharine Schellman

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Silence in the Library

By Henrietta Meire, Katharine Schellman

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The Body in the Garden

By Henrietta Meire, Katharine Schellman

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Last Note of Warning

By Katharine Schellman

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Last Call at the Nightingale

By Katharine Schellman

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Last Call at the Nightingale

By Katharine Schellman

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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.