Tamra Orr Books

Camouflage and mimicry in the wild

By Tamra Orr

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Discusses some of the ways animals use camouflage and mimicry in the wild to hunt prey, avoid predators, and survive.

Barbados

By Tamra Orr

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Presents information on the geography, history, economy, and people of Barbados. Includes a chronology, recipes, project ideas, and more.

Geothermal energy

By Frank Muschal, Tamra Orr

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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.

Tamra Orr Books

Camouflage and mimicry in the wild

Marie Curie

Marie Curie

The Windward Islands

Barbados

Native American medicine

Geothermal energy

Hydroelectric energy

Public health microbiologist

Forensic science investigator

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?