This text is written to match the new double award GCSE in the subject. Suitable for use with all awarding bodies' specifications, this text is pitched at exactly the right level and is written in a clear, concise yet comprehensive fashion. Examples, Case Studies, assessment questions and a glossary will all help to ensure that students are given the best possible support in this new qualification. The authors have experience of writing accessible texts in health and social carea and this one is no exception.