David A. Phillips Books

Secrets of the inner self

By David A. Phillips

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The Carlos Contract

By David A. Phillips

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Development without aid

By David A. Phillips

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"Development Without Aid" aims to opens up perspectives about foreign aid to the world's poorest countries. Growing up in Africa the author developed a sense of the limitations of foreign assistanc...

Development without aid

By David A. Phillips

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The Complete Book Of Numerology

By David Phillips, David A. Phillips, David A. Phillips, Ph.D., David A. Phillips, PhD

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Discover the science of self-discovery To the conventional scientist, numbers are merely symbols of comparative quantities, but in the broader, metaphysical sense, they assume a deeper, more profou...

Culture and Environment in the American Southwest

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A collection of essays on ancient Indian culture in the Southwest includes tributes to pre-Columbian studies scholar Dr. Robert C. Euler.

Reforming The World Bank: Twenty Years Of Trial - And Error

By David A. Phillips

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In the many studies of the World Bank, a critical issue has been missed. While writers have looked at the Bank's political economy, lending, conditions, advice, ownership and accounting for issues...

South Asia 2060

By Adil Najam, Moeed Yusuf

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21 Days to Master Numerology

By David A. Phillips

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Discover how to use your birth chart to find your true inner self and create a life full of abundance, purpose and joy.Are you searching for the answers to life’s unsolved questions? Tap into...

Charles Darwin s Lost Race and Muhammad s Lost Tribes

By David A. Phillips

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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.