Collection of respected sources which provide country-by-country data and analysis. Some offer broad overviews of conditions and issues, while others focus on narrower issues -- human rights, business, press freedom, energy, etc.
2012 two-volume set contains about 300 signed essays which focus on the "major theories, concepts, and conclusions that define the field, analyzing the similarities and differences between political units..." [ preview ]
Three-volume set (2010) "examines the ideas of the major political theorists from before Plato to our own times; the main schools of political thought; the concepts and issues that have captured the imagination and attention of political theorists; and some of the main institutions and practices inspired by political thought."
Two-volume set (2011) contains nearly 100 signed entries designed "to provide undergraduate majors in political science with an authoritative reference source that will serve their research needs with far more detailed information than short encyclopedia entries, but not so much jargon, detail, or density as a journal article or a research handbook chapter. [ preview ]
Five-colume set (2010) was prepared with the assistance of the American Political Science Association. It contains about 1,500 alphabetically-arranged, signed entries (including one contributed by Washington and Lee Professor Mark Rush) on "political theories, concepts, research frameworks, and political practices from across the world."