Acknowledgements

This free course was written by Azita Chellappoo.

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 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:

Images

Course image/Section 1 image: Photo: Chris Merriam/Alamy

Section 2 image: Photo: Kristoffer Tripplaar/Alamy

Section 3 image: Photo: Martin Shields/Alamy

Section 3.2 image: Photo: Khosrow Rajab Kordi/Alamy

Section 4.1 image: Photographer: Elijah Nouvelage/Bloomberg via Getty Images

Section 5 image: Photo: ronstik/Alamy

Audio/Video

Section 3.1 audio: The Open University

Section 4 video: Daniel Nils Roberts, for the BBC and The Open University partnership. Content from Pond 5, Shutterstock and Videoblocks

Sections 5 and 5.1 videos: The Open University

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.

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