Mary Mackey Books

X10 Shrinkwrap Pleasures Palaces

By Mary Mackey

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The Widow's War

By Mary Mackey

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The "superb" New York Times bestselling author delivers a sweeping epic set during the early days of the Civil War.In 1853, Carolyn Vinton is left alone and pregnant after her fiancé, aboli...

Killer Wore Cranberry

By J. Alan Hartman, Mary Mackey, Barbara Metzger, Barb Goffman, Lisa Wagner

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Killer Wore Cranberry

By J. Alan Hartman, Mary Mackey, Barbara Metzger, Toni Goodyear, Barb Goffman

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With the nation on the verge of civil war, Claire Winston becomes a crusading abolitionist. But she takes an even greater risk when she finds herself in love with John Taylor, her husband's nephew....

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.