For the purpose of this book, research is defined as the deliberate study of other people for the purposes of increasing understanding and/or adding to knowledge. This deliberate study could cover many different areas. As a researcher, you might be interested in attitudes and behaviour – why do people think in a certain way and why do they behave in a certain way? Or you might be interested in numbers – how many people use a service? Perhaps you need to try to predict how this number of people could be increased so that you can obtain funding for your service. Or you might be fascinated by the personal history of a neighbour and have a burning desire to record her history and pass it on to others.