This handbook provides a compact and comprehensive collection of data from 20 countries which offers comparative information on the composition of governments. Parties, ministries, portfolios, ministers and parliamentary support are listed, as well as duration, type of government and reasons for termination. The data are organized in such a manner that researchers can use them as a basic data set, ready to be transformed according to the particular needs dictated by the research undertaken. Various levels of analysis are possible, both cross-nationally and across time, ranging from individual ministers and separate ministries to specific parties, governments or countries. Given its format, the data set is also a very useful background to the special annual issue of the European Journal of Political Research - Political Data Yearbook . It should save researchers in the field of comparative politics valuable time as it can be utilized in connection with, or in addition to, other data sources.