Denise Walker Books

Reproduction breathing and health

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"Introduces readers to the way in which we grow and change from before birth until adulthood. Find out how humans reproduce, discover how the respiratory system works, and learn about how our bodie...

Adaptation Survival Basic Biology

By Denise Walker

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Green Plants Basic Biology

By Denise Walker

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Adaptation et survie

By Cheschire Gerard

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De la cellule a la vie

By Walker Denise

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Acides et alcalis

By Denise Walker

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Une collection se proposant d'initier les jeunes aux grands preceptes de divers domaines de la science tout en insistant sur la facʹon dont ils se traduisent dans la vie quotidienne. Chaque titre o...

Reactions chimiques

By Denise Walker

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Une collection se proposant d'initier les jeunes aux grands préceptes de divers domaines de la science tout en insistant sur leurs manifestations dans la vie quotidienne. Chaque titre offre des tex...

Heredite et evolution

By Denise Walker

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Une collection se proposant d'initier les jeunes aux grands préceptes de divers domaines de la science tout en insistant sur la façon dont ils se traduisent dans la vie quotidienne. Chaque titre of...

Metals and non metals

By Denise Walker

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This title introduces the reader to the properties of different materials. Find out how metals are extracted, learn about different refining techniques and discover how metals might be used in the...

Adaption and survival

By Denise Walker

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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.