This Book focus has been primarily on theorybuilding through exploratory case study research. In this book, Jan Dul and Tony Hak have set out to provide a structured and broader view of the use of case study research. They make clear the differences between the varying uses of case studies including the difference between practiceoriented and theory-oriented research. In particular, in addition to theory-building, they pay attention to two areas: first, theory-testing and, second, replication, with its consequent impact on generalizability. They have produced a valuable addition to the armoury of the business researcher. It is important that case study research is conducted well, so that the results are both rigorous and relevant. Case study research is not an excuse for “industrial tourism” – visiting lots of organizations without any preconceived ideas as to what is being researched. For the achievement of the potential of case study research it is important that it is done with rigour. This book sets out structures and guidelines that will assist researchers from a wide range of disciplines to develop rigorous use of case studies in research.