Roger Harris Books

ICES Zooplankton Methodology Manual

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"This Manual provides a comprehensive account of modern methods for studying the microscopic animal plankton which form the basis of the food chains supporting all the world's major fisheries.". "...

Empiricism Explanation and Rationality

By Roger Harris, Len Doyal

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Race for Survival Lego Readers Program Level 4

By Roger Harris, Marie Birkinshaw

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Empiricism Explanation and Rationality

By Roger Harris, Len Doyal

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Competency Based Education and Training

By Roger Harris, Barry Hobart, Hugh Guthrie, David Lundberg

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Seagulls the Story of Brighton Hove Albion F.C.

By Roger Harris, Tim Carder

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Albion A Z

By Carder Timothy Harris Roger

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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.