Danna Staaf Books

Before there were mammals on land, there were dinosaurs. And before there were fish in the sea, there were cephalopods--the ancestors of modern squid and Earth's first truly substantial animals. Ce...

The Lady and the Octopus

By Suzie Althens, Danna Staaf

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Lives of Octopuses and Their Relatives

By Danna Staaf

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Lives of Octopuses and Their Relatives

By Danna Staaf

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Nursery Earth

By Danna Staaf

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Nursery Earth

By Danna Staaf

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Monarchs of the Sea

By Danna Staaf

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Monarchs of the Sea

By Danna Staaf

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Lady and the Octopus

By Danna Staaf

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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.