Elizabeth Porter Books

Pollution in Four Industrialised Estuaries

By Royal Commission On Environmental Pollution, Elizabeth Porter

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Water Management in England and Wales

By Elizabeth Porter

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Feminist Perspectives On Ethics

By Elisabeth J. Porter, Elizabeth Porter

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1 online resource Feminist Perspectives on Ethics is a unique guide to the development of feminist thought on ethics and moral agency. Each chapter offers a survey of feminist debates on key areas:...

Classic basket quilts

By Liz Porter

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Everyone Loves Coloring Cats

By Elizabeth Porter

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Pollyanna: Audio CD

By Marian Leighton, Elizabeth Porter, Porter, Eleanor Hodgman Porter, Neil Reed, Lee Giles

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An abridged version of the tale of orphaned, eleven-year-old Pollyanna, who comes to live with austere and wealthy Aunt Polly, bringing happiness to her aunt and other members of the community thro...

Stranger, Visitor, Foreigner, Guest

By Elizabeth Porter

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Stranger Visitor Foreigner Guest

By Elizabeth Porter

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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.