Graham Park Books

7 Secrets The Weight Loss Industry Will Never Tell You

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"Most mountains on Earth occur within relatively well-defined, narrow belts separated by wide expanses of much lower-lying ground. Their distribution is not random but is caused by the now well-und...

Loose Connections

By Graham Park, Liz Barrington

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Introducing Geology

By Graham Park

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Introducing tectonics rock structures and mountain belts

By R. G. Park

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An explanation of key concepts of tectonics and rock structures. The reader is introduced to large-scale Earth structure and theory of plate tectonics before dealing with geological structures such...

Die Geologie Europas

By Graham Park

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Die Geologie Europas

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Geologie fur Neugierige

By Graham Park

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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.