This is a fully updated and revised edition of the best-selling dictionary of political terms. Containing more than 1,700 entries, including new material on topics such as NGOs, butterfly ballots, decentralisation, ethnic cleansing, and direct action , this dictionary has been written by a leading team of political scientists and covers political thinkers, institutions, and concepts. The dictionary has international coverage and will prove invaluable to students and academics studying politics an d related disciplines, as well as professionals and the general reader. Appendices list the political leaders of a range of countries and international institutions.