Table of contents : Thinking about research -- Planning a research project -- Data generation for quantitative analysis -- Preparing, exploring and describing quantitative data -- Analysing and interpreting quantitative data -- Spatial analysis -- Producing data for qualitative analysis -- Analysing and interpreting qualitative data -- Analysing qualitative data using a computer -- Writing-up and dissemination -- Final words -- Tables -- Annotation for the interviews with respondents B, C and D -- Addresses