David Ponsonby Books

The Anatomy of Insects Spiders

By David Ponsonby, Claire Beverley

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The Anatomy of the Sea

By David Ponsonby, George Sussart

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From sharks, star-fish, and sea squirts to porpoises, penguins, and plankton, this charming compendium is swimming with exotic sea life. Over 600 specimens are presented in page after page of intri...

Soccer fitness

By David Ponsonby

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The anatomy of the sea

By David Ponsonby

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The Anatomy of Insects and Spiders

By David Ponsonby, Claire Beverley

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The anatomy of the sea

By David Ponsonby

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Ponsonby s Curious Compendium

By David Ponsonby, Claire Beverley

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288 pages : 18 cm

Les crA C atures de la mer

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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.