Rosalind Dixon is Professor of Law at University of New South Wales, Sydney, and visiting professor at Harvard Law School, Fall 2017. Her work focuses on comparative constitutional law and constitutional design, theories of constitutional dialogue and amendment, socio-economic rights, and constitutional law and gender. She is co-president elect of the International Society of Public Law, and on the Editorial Board of its associated journal, the International Journal of Constitutional Law. She is also advisor to the Public Law Review and the Journal of Institutional Studies. Her work has been published in leading journals in the US, Canada, the UK and Australia. She is co-editor, with Tom Ginsburg, of Comparative Constitutional Law (2011) and Comparative Constitutional Law in Asia (2014). She is also co-editor, with Mark Tushnet and Susan Rose-Ackermann, of the Edward Elgar series on Constitutional and Administrative Law and editor of the Constitutions of the World series. Adrienne Stone is Redmond Barry Distinguished Professor, Director of the Centre for Comparative Constitutional Studies and Kathleen Fitzpatrick Australian Laureate Fellow at Melbourne Law School. She is First Vice President of the International Association of Constitutional Law and is a Fellow of the Academy of Social Sciences in Australia. She writes on constitutional law and theory, with particular attention to freedom of expression. Her work has been published widely in international journals on these questions. She is co-editor, with Cheryl Saunders, of The Oxford Handbook on the Australian Constitution (forthcoming) as well as co-editor with Frederick Schauer of the forthcoming Oxford Handbook in Freedom of Speech.