This section gives a brief indication of the wealth of contexts of theories, approaches and practices to which health and social care relates. This richness of contexts illustrates the high level of expertise required of practitioners in health and social care, even those working at the lower levels in the hierarchy. In fact, I would argue that those working at the lower levels, in the poorest paid jobs, have the greatest exposure to the greatest range of different professional ideas and so have to acquire the greatest breadth of knowledge. This, of course, is the opposite of what some powerful and highly paid professionals would want us to believe. The most junior health and social care practitioners also are most exposed, for longer periods of time, to face to face work with carers and people who use health and social care services.