Penny Clarke Books

Scary creatures of the wetlands

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Illustrations, photographs, and special see-through pages introduce children to urban animals, and describes the unique characteristics of animals that live in cities, how they survive, and other r...

Scary creatures of the city

By Penny Clarke

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Midsummer Night s Dream

By Penko Gelev, William Shakespeare, Penny Clarke

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Midsummer Night s Dream

By Penko Gelev, Penny Clarke

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Hamlet

By Penko Gelev, 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.