Rognvaldur Hannesson Books

Bioeconomic analysis of fisheries

By Rognvaldur Hannesson

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Bioeconomic analysis of fisheries

By Rognvaldur Hannesson

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Fisheries mismanagement

By Rognvaldur Hannesson

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Investing for Sustainability

By Rognvaldur Hannesson

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Mineral deposits are non-renewable; they do not grow in the ground. Sustainable use of finite mineral wealth requires that revenues from mineral extraction be invested in renewable wealth, educatio...

Economics of fisheries

By Rognvaldur Hannesson

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Ecofundamentalism

By Rognvaldur Hannesson

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Petroleum economics

By Rognvaldur Hannesson

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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.