This book, compiled in honour of the work and life of Professor Jonathan Fitchen, brings together preeminent scholars from across the private international law world. The chapters address a variety of conceptual and substantive problems in private international law, providing discerning consideration of contemporary developments in the discipline, from conceptual analyses of the evolving nature and scope of private international law to substantive problems across a range of longstanding and emerging issues. The contributions provide substantial new insights into our understanding of the nature of private international law. Taken together, the book addresses subject matters across the spectrum of private international law problems, including issues on which there is insufficient scholarly analysis. This includes consideration of contemporary problems of great political importance, such as migration, environmental protection, gender-based discrimination, and the proper delineation of public and private intervention. In addition, emerging problems in commercial law, such as cryptocurrencies, are explored in the book, as are longstanding definitional concerns in family law. Broader emerging systemic concerns, such as the treatment of foreign judgments in major economies such as China and the post-Brexit evolution of private international law, are also addressed. The book is a valuable source for the judiciary, legal practitioners, policy makers, and scholars of private international law.