Carol Ballard Books

Personal Hygiene Keeping Healthy

By Carol Ballard

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Aids and other epidemics

By Carol Ballard

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This book looks at causes of major infectious diseases, how they spread, how they can be treated and what steps are being taken to deal with epidemics and pandemics in the future.

Eating Keeping Healthy

By Carol Ballard

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Relationships Keeping Healthy

By Carol Ballard

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Reproduction

By Carol Ballard

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"[I]nvestigates the basic life processes that creates individuals. You will learn what happens during puberty, how to work out what your adult height is likely to be, what happens when a sperm meet...

Lungs and Respiration Exploring the Human Body

By Carol Ballard

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How Do Our Ears Hear How Our Bodies Work

By Carol Ballard

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How do we taste and smell

By Carol Ballard

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A basic introduction to how our bodies perceive taste and smell, exploring such topics as the taste buds, the detection of different tastes, the structure of the nose, and artificial tastes and sme...

How Do We Taste and Smell How Our Bodies Work

By Carol Ballard

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Forces and Movement

By Carol Ballard

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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.