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[email protected] Lines are open from 9 a.m. to 5 p.m., Monday to Saturday, with a 24-hour message answering service. You can also order through our website: www.hoddereducation.co.uk ISBN: 978 1 5104 2322 0 eISBN: 978 1 5104 2309 1 © Mark Billingham 2018 First published in 2018 by Hodder Education, An Hachette UK Company Carmelite House 50 Victoria Embankment London EC4Y 0DZ www.hoddereducation.co.uk Impression number 10 Year 2022 2021 9 2020 8 7 2019 6 5 2018 4 3 2 1 All rights reserved. Apart from any use permitted under UK copyright law, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or held within any information storage and retrieval system, without permission in writing from the publisher or under licence from the Copyright Licensing Agency Limited. Further details of such licences (for reprographic reproduction) may be obtained from the Copyright Licensing Agency Limited, www.cla.co.uk Cover photo © iStock/Getty images/Thinkstock Illustrations by Integra Software Services Pvt. Ltd., Pondicherry, India Typeset by Integra Software Services Pvt. Ltd., Pondicherry, India Printed in Spain A catalogue record for this title is available from the British Library. Get the most from this book Everyone has to decide his or her own revision strategy, but it is essential to review your work, learn it and test your understanding. These Revision Notes will help you to do that in a planned way, topic by topic. Use this book as the cornerstone of your revision and don’t hesitate to write in it – personalise your notes and check your progress by ticking