Constance Sullivan Books

Landscapes of the Civil War

By Constance Sullivan

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Landscapes Of The Civil War

By Constance Sullivan

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For the first time in a book, ninety-seven extraordinary, beautiful, and moving photographs from one of the nation's most important Civil War archives - more than five thousand photographs never be...

The World at Worship

By Connie Sullivan

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Women photographers

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Petroglyphs of the heart

By Constance Sullivan

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Women photographers

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Flowers. Von der Schonheit der Bluten.

By Sydney Eddison, Harold Feinstein, Leslie Nolan, Constance Sullivan, Greg Piotrowski, A. D. Coleman

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Spirit of sport

By Constance Editor Sullivan

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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.