Prof Van der Walt is a leading international scholar, particularly in Constitutional Property Law. His book Constitutional Property Law (3rd ed 2011) is prescribed for a final year course at Harvard Law School as from September 2006. He was invited in 2012 as the only South African to join 16 scholars from around the world to teach and supervise an international doctoral programme, presented by the universities of Kiel, Glasgow, Antwerp and Tilburg, on Globalisation and Legal Theory. In 2013 he was the only South African academic (in addition to two former and one then current Chief Justice of South Africa) to be invited by the Dean of Harvard Law School to attend and to speak in honour of Prof Frank I Michelman, one of the three most cited lawyers in the US. In 2014 he was the first and still only non-US scholar to receive the merit award of the international Association for Law, Property and Society (ALPS). His work has been cited in South African literature and court decisions since 1984. Significant citations in court decisions include central decisions of the Constitutional Court and the Supreme Court of Appeal. Significant citations in international sources include books and journal articles in the US, the UK, the Netherlands and Australia. Recognitions: membership in national and other academies, prizes, awards, etc. Member, Academy of Sciences of South Africa Fellow, Royal Society of South Africa.