Eric Helland Books

Parchment Barriers

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RR 370 CCEG Fair Value Accounting Historical Cost Accounting and Systemic Risk

By James N. Dertouzos, Michael D. Greenberg, Eric Helland, Noreen Clancy

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Fair value accounting (FVA) refers to the practice of updating the valuation of assets or securities on a regular basis, ideally by reference to current prices for similar assets or securities esta...

Judge and Jury

By Eric Helland, Alexander Tabarrok

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Parchment Barriers

By Eric Helland, Kenneth Miller, Zachary Courser

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Parchment Barriers

By Eric Helland, Kenneth Miller, Zachary Courser

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Judge and Jury

By Eric Helland, Alexander Tabarrok

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Judge and Jury

By Eric Helland, Alexander Tabarrok

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Judge and Jury

By Eric Helland, Alexander Tabarrok

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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.