Ben Stein And Phil Demuth Books

Yes You Can Be a Successful Income Investor

By Phil Demuth, Ben Stein

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Yes, You Can Supercharge Your Portfolio!

By Ben Stein And Phil Demuth

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Most investors spend their time worrying about selecting individual stocks and mutual funds: big mistake! Modern Portfolio Theory—developed in 1952 by economics Nobel Prize winner Harry...

Yes, You Can Get a Financial Life!

By Ben Stein And Phil Demuth

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Life is not lived all at once—it’s lived in moments, days, months, years, and decades. This means that the financial plans and actions we all have to take to meet our responsibilit...

The Real Stars

By Ben Stein And Phil Demuth

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Is Barbra Streisand a star? Is Bruce Springsteen a star? Is Sean Penn a star? Are any of the Hollywood players who endlessly complain about America (and make $20 million per picture) and say that A...

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.