As noted in Chapter 8, case study analysis is a research method that can be undertaken quantitatively, when a representative sample of cases are analysed, or qualitatively, when one or a few cases are examined in depth. Case study analysis is a way of learning from what others have done. Thus it is grounded in practice. But such analysis also facilitates theory-building, because it can provide knowledge that can be generalized or transferred to other situations to allow us to replicate successful approaches and to avoid the mistakes that others have made. As practitioners would say, findings can inform future strategy and tactics. It seems fitting in this book – which reports research about research, including interviews and ethnography in relation to latest developments and practices, as well as literature review (desk research) – to conclude with case studies, particularly recent ones.