This free course was first published in December 2020.
Except for third party materials and otherwise stated (see terms and conditions [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] ), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence.
The material acknowledged below and within the course is Proprietary and used under licence (not subject to Creative Commons Licence). Grateful acknowledgement is made to the following sources for permission to reproduce material in this free course:
Week 2, Figure 1: Anna Proudfoot
Week 2, Figure 2: © Claudiu Marius Pascalina/Dreamstime.com
Week 2, Figure 3: Anna Proudfoot
Week 2, Figure 4: Anna Proudfoot
Week 2, Figure 5: © Konstantinos Papaioannou - Dreamstime.com
Week 2, Figure 6: Anna Proudfoot
Every effort has been made to contact copyright owners. If any have been inadvertently overlooked, the publishers will be pleased to make the necessary arrangements at the first opportunity.
Don't miss out
If reading this text has inspired you to learn more, you may be interested in joining the millions of people who discover our free learning resources and qualifications by visiting The Open University – www.open.edu/ openlearn/ free-courses.