The International Symposium on Computational Aesthetics in Graphics, Visualization, and Imaging will be held on May 28-30, 2009 in Victoria, British Columbia, Canada. It is the fifth event on this topic following a Workshop in 2005 in Girona, Spain, a Dagstuhl seminar in Germany in 2006, a Symposium in 2007 in Banff, Alberta, Canada and a Symposium in 2008 in Lisbon, Portugal.