ANdy Heller Books

Buy low rent smart sell high

By Scott M. Frank, Andy Heller, Scott Frank

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Take the High Road

By Andrew Heller

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Take the High Road

By Andrew Heller

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Buy Even Lower

By Andy Heller, Scott Frank

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Scott Frank and Andy Heller have been buying investment real estate for a combined 40 years. In Buy Even Lower, learn how they consistently buy these properties for the "right investor price". Addi...

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.