John E. Randall Books

Fishes of the Great Barrier Reef Coral Sea

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"Fishes of the Great Barrier Reef and Coral Sea is a long-overdue revision and expansion of what has become a classic book in marine literature. This lavishly illustrated volume provides exhaustive...

Reef and Shore Fishes of the South Pacific

By John E. Randall

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A review of the labrid fishes of the genus Halichoeres of the western Indian Ocean, with descriptions of six new species

By John E. Randall

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Imifino

By Madeleen Husselman

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Caribbean reef fishes

By John E. Randall

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Underwater guide to Hawaiian reef fishes

By John E. Randall

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Underwater guide to Hawaiian reef fishes

By John E. Randall

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Guide to Hawaiian reef fishes

By John E. Randall

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Red Sea Reef Fishes

By John E. Randall

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The Diver s Guide to Red Sea Reef Fishes

By John E. Randall

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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.