2003. Rising Tide: Gender Equality & Cultural Change around the World. Coauthored with Ronald Inglehart. New York : Cambridge University Press. Pp.226. (A Polish edition was published in 2006)
2004 Electoral Engineering: Voting Rules and Political Behavior. New York : Cambridge University Press. Pp.360.
2004. Sacred and Secular: Politics and Religion Worldwide. Coauthored with Ronald Inglehart. New York : Cambridge University Press. Pp.370. (Croatian, Polish, Indonesian, and Italian translated versions are forthcoming). (Awarded the 2005 Virginia A. Hodgkinson prize by the Independent Sector).
2005. Britain Votes 2005. Edited with Christopher Wlezien. Oxford : Oxford University Press.
2005. Radical Right: Voters and Parties in the Electoral Market. New York : Cambridge University Press. Pp.349.
2007. Making Democracy Deliver: Governance and Human Development. Edited. (CT: Kumarian Press/UNDP)
2008. Comparing Democracies 3: New Challenges in the Study of Elections and Voting. Edited with Lawrence Leduc and Richard Niemi. London : Sage. (Completely revised 3rd edition)
2008. Driving Democracy: Do Power-Sharing Institutions Work? (In press, Cambridge University Press, forthcoming spring 2008).