David McKean Books

Friends in High Places: The Rise and Fall of Clark Clifford

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For more than forty years, Clark Clifford was Washington's consummate Democratic power broker - attorney and adviser to the nation's most influential leaders. His 1991 memoir, Counsel to the Presid...

Tommy the Cork

By David Mckean

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Peddling Influence

By David Mckean

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The Great Decision

By Cliff Sloan

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Suspected of independence

By McKean David Director Of Policy Planning

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The last signatory to the Declaration of Independence was one of the earliest to sign up for the Revolution: Thomas McKean lived a radical, boisterous, politically intriguing life and was one of th...

Strategy

By McKean David Chartered Engineer.

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Student and faculty guide to graduate school admissions

By David McKean

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The Great Decision

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Partners of First Resort

By David McKean, Bart M. Szewczyk

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Watching Darkness Fall

By David McKean

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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.