John G. Sperling Books

Rebel with a Cause

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"Rebel With A Cause is the tale of how a man born into poverty went on to establish the for-profit Institute for Professional Development, the University of Phoenix, and Apollo Group, America's lar...

The South Sea Company

By John G. Sperling

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For Profit Higher Education

By Robert Tucker, John G. Sperling, John Sperling

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For Profit Higher Education

By Robert Tucker, John Sperling

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Rebels for the Cause

By Jon Spurling, John G. Sperling

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The Literature of Work

By Sheila E. Murphy, John G. Sperling

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The great divide

By John G. Sperling

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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.