John Speakman Books

Animal Physiology

By John Speakman, Patrick J. Butler, Anne Brown, Patrick Butler, John R. Speakman, J. Anne Brown, George Stephenson, D. George Stephenson

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The only text to take an evolutionary approach to show how physiological systems allow animals to adapt to their changing environments Animal Physiology shows how an understanding of the physiolog...

Doubly Labelled Water: Theory And Practice

By John Speakman, J. R. Speakman, J. Speakman

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The Small Entrepreneur In Fragile And Conflict-Affected Situations

By John Speakman, Annoula Rysova

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Shrinking Birds

By John Speakman

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Animal Physiology: Adaptation And Environment

By Theodore Garland, John Speakman, Anne Brown, Patrick Butler

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The Small Entrepreneur In Fragile And Conflict-Affected Situations

By John Speakman

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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.