Penny Clarke Books

Insects & spiders

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Describes the physical characteristics, lifestyles, and environmental effects of such insects as ants, beetles, flies, and spiders.

Rain Forest Worldwise

By Penny Clarke

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Provides an overview of the plants and animals that live in the world's rainforests and discusses the threats to their continued existence.

Rights in the home

By Emma Haughton

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Looks at the issues of homelessness and domestic relations from the point of view of universal human rights.

Beneath the oceans

By Penny Clarke

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Discusses the formation, structure, currents, tides, food chain, and importance of our oceans.

Volcanoes

By Penny Clarke

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Describes the formation, activity, and naming of volcanoes.

Sharks (Scary Creatures)

By Penny Clarke

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Describes the physical characteristics--inside and out--of sharks, their reproduction, eating habits, and habitat, as well as their reputation as killers.

Snakes alive

By Penny Clarke

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Describes the physical characteristics, behavior, of various kinds of snakes.

Spiders Insects and Minibeasts Scary Creatures

By Penny Clarke

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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.