Charlotte Douglas Books

Mystique Harlequin Mystique

By Charlotte Douglas

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Kazimir Malevich

By Charlotte Douglas

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The Battle of Betazed

By Charlotte Douglas

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Masters of Art

By Charlotte Douglas

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Under tsarist as well as Communist rulers, Malevich often worked in a coded language, as Charlotte Douglas, the leading American authority on Malevich's work, explains in this revealing new book. S...

Relative danger

By Charlotte Douglas

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Swans of other worlds

By Charlotte Douglas

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Darkness at Fair Winds

By Charlotte Douglas

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For the sake of Warwick Mountain

By Charlotte Douglas

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Her kind of cowboy

By Charlotte Douglas

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B and B owner Caroline Tuttle has dreamed of moving out West and marrying a cowboy ever since she saw her first horse. But then a friend wills Caroline a farm, and leaves her with two final wishes-...

Pelican Bay

By Charlotte Douglas

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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.