Theresa Greenaway Books

Beetles

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Provides information on the identification, life cycle, and habitats of beetles, as well as on how to collect and care for them as pets.

Slugs and snails

By Theresa Greenaway

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Provides information on the identification, life cycle, and habitats of slugs and snails, as well as on how to collect and care for them as pets.

Worms

By Theresa Greenaway

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Provides information on the identification, life cycle, and habitats of earthworms and other kinds of worms, as well as on how to collect and care for them as pets.

Spiders

By Theresa Greenaway

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Provides information on the identification, life cycle, and habitats of spiders, as well as on how to collect and care for them as pets.

Grasshoppers and crickets

By Theresa Greenaway

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Provides information on the identification, life cycle, and habitats of grasshoppers, crickets, and katydids, as well as on how to collect and care for them as pets.

Spiders

By Theresa Greenaway

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Caterpillars

By Theresa Greenaway

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Tree Life Look Closer

By Theresa Greenaway

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Poisonous animals

By Theresa Greenaway

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Ocean

By Barbara Taylor, Theresa Greenaway, Christiane Gunzi

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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.