Daniel Levy Books

U.S. Citizenship and Naturalization Handbook 2005 Edition

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U.S. Citizenship and Naturalization Handbook, 2010-2011 ed.

By Vern J. Ostdiek

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A Change of Heart

By Daniel Levy, Levy Daniel M.D, Susan Brink

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Change of Heart

By Daniel Md Levy

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A Change of Heart is a detailed account of the revolutionary Framingham Heart study — which, over the years, has provided conclusive evidence that cardiovascular disease is largely the result of me...

U.S. Citizenship and Naturalization Handbook 1999 Edition

By Daniel Levy

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Mexico, paradoxes of stability and change

By Daniel C. Levy

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Automobile Aerobics

By Daniel J. Levy

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Automobile Aerobics

By Daniel J. Levy

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Handbook of Frauds Scams and Swindles

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Challenging Ethnic Citizenship

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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.