"This timely Handbook contains a wide-ranging overview of the diverse research methods used within international law. Providing an insightful examination of how international legal knowledge is analysed and adopted, this Handbook offers the reader a deeper understanding on the role and place of research methods in international legal theory, reasoning and practice. Split into five parts, the chapters cover key topics across doctrinal, empirical, socio-legal, interdisciplinary research methods and methodology. The contributors also apply their knowledge and insight to explore the relationship between different research methods and their role in international legal theory, reasoning and practice. Covering a range of diverse subjects yet written in a methodical style, the contributors furthermore engage with rethinking international law methods. This comprehensive Handbook will be invaluable for researchers in international law, as well as being an excellent resource for graduate and doctoral students"--