Mark Caldwell Books

Public Service Case File Packet

By Mark Caldwell

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A short history of rudeness

By Mark Caldwell

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In his thought-provoking new book, literary/social critic Mark Caldwell gives us a history of the demise of manners and charts the triumphant progress of rudeness in America. Touching on aspects of...

The Treasury of English poetry

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Saranac Lake

By Mary Hotaling, Mark Caldwell, Barbara Parnass

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Public Service Case File Packet

By Mark Caldwell

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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.