All legal systems are mixed; some more than others. There are covert mixtures, overt mixtures, stable mixtures, ones in transition. This book brings together a wide range of legal orders, some well known, some not so often studied. Eighteen legal orders are covered by experts directly acquainted with the orders they write about. The analysis offered is far beyond a decriptive one, the general aim being to provide a basis for discussion by covering paths, methods and specific techniques, consequences and implications of legal migration. The newly emerging democracies of Eastern Europe, for example, are looking at the pool of models when re-designing their systems. Such systems in transition open up a whole new world of possibilities for research. The two final chapters on spectral jurisprudence and the conceptual search bring into focus and widen the analysis further.