Three first-day covers with different designs - for 1 Austrian Schilling, 1 Swiss Franc and 1 U. S. Dollar, respectively - were issued for the series "World Social Summit in Copenhagen"; one each for the postal services in Vienna, Geneva and New York.
The following first-day covers were available:
- one envelope with the value of one of the postage stamps
- one envelope with the value of a block of four postage stamps
- one official, large-format "trio envelope" with all three postage stamps of this edition, plus the corresponding first-day cancellations from Vienna, Geneva and New York.
- Minoritenkloster, Tulln, 2008
- P. Restany, Die Macht der Kunst, Hundertwasser - Der Maler-König mit den fünf Häuten, Cologne, 1998, p. 69 (c)
- A. C. Fürst, Hundertwasser 1928-2000, Catalogue Raisonné, Cologne, 2002, Vol. II, pp. 1045/1046 (and c)
- Briefmarkenbuch, Vienna, 2008, (c)
- St. Pelloni, Hundertwasser, un incontro magico, Ravenna, 2010 (c)