Linnea Gentry Books

Standing Up Country

By Linnea Gentry

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The Glass Ark: The Story of Biosphere II

By Karen Liptak, Linnea Gentry

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The glass ark

By Linnea Gentry

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Describes the Biosphere 2 project which has created a closed environment intended to duplicate life on Earth in a way that would facilitate future space colonies.

Hans Christian Andersen's The Marsh King's daughter

By Linnea Gentry

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Discovered by a stork and raised by Vikings, Helga lives an enchanted existence as a beautiful but vicious human child by day and a gentle but ugly toad by night, until finding her true home by the...

Hans Christian Andersen's The Marsh King's daughter

By Linnea Gentry

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Fine Print on Type

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The ocean and its reef

By Linnea Gentry

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Describes the ocean model inside the Biosphere 2 project and outlines what researchers hope to discover from its replication of the Earth's oceans.

A guide to Navajo weavings

By Kent McManis

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Portrait of a Biosphere

By Linnea Gentry

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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.