The popularity of his monumental and definitive works have established Shabtai Rosenne as the undisputed expert on the International Court of Justice?s law and practice. His broad exchange of correspondence and extensive conversations with members of the Court and its Registrars, as well as with other friends who know the Court and its practices well, and his experience in the Court and in the UN, especially the General Assembly and the Security Council, led him to undertake this major reconstruction of this work in the previous edition.