Drew Harvell Books

A sea of glass

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"From diving for dangerous jellyfish in the Mediterranean to searching for harpoon-backed sea slugs in Southeast Asia, A Sea of Glass recounts the author's quest to document the living invertebrate...

Ocean Outbreak

By Drew Harvell

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Sea of Glass

By Harry W. Greene, Drew Harvell

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Ocean Outbreak

By Drew Harvell

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Ocean Outbreak

By Drew Harvell

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Sea of Glass

By Drew Harvell

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The Ocean's Menagerie

By Drew Harvell

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An elegantly written exploration of the cutting edge science of the strangest and most remarkable creatures on our planet by a leading marine biologistHundred-year-old giant clams, coral kingdoms t...

The Ocean's Menagerie

By Drew Harvell

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The Ocean's Menagerie

By Drew Harvell

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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.