The WIOS library catalogue contains more than 500 different economic and social statistics of Eastern and South Eastern European countries. The focus is on Russia, Poland, Hungary and Ukraine, but also rarely available statistics from Central Asia and the Caucasus are found here. The WIOS collection of Eastern European statistics is the most various in Germany next to ZBW in Kiel. The presentation and access of the statistics are very comfortable: The most recent issues are available in the reading room of WIOS and therefore immediately accessible. Older and rarely demanded volumes can be ordered from the archive and are accessible in the reading room after a few minutes.