Felice Morgenstern was one of the leading international organizations lawyers of her generation, producing first-rate academic work based on her vast practical experience, gained as a legal official at the International Labour Organization. This re-issue of her classic Lauterpacht lectures delivered at Cambridge University in 1985 (with a Foreword by Jan Klabbers) discusses three issues in the law of international organizations: their position in public and private international law; issues of membership and representation, and standard-setting. Long out of stock, this re-issue makes Morgenstern’s pioneering work available to a new generation of students of international organizations law.