Professor Sir Neil MacCormick, FRSE, FBA (always in that order: with the Edinburgh society preceding the British Academy on his business card!), LLD, Jur.Dr.h. c. (multi!), QC, Regius Chair of Public Law and the Law of Nature and Nations at Edinburgh and MEP, was one of the greatest contemporary legal scholars in Scotland and furth its shores until his untimely death in 2009. Neil Walker and his colleagues put together this set of essays as a tribute to this great man.