This volume presents a careful selection of relevant EC applications combinedwith a thorough examination of the techniques used in EC. The papers in thevolume illustrate the current state of the art in the application of EC and canhelp and inspire researchers and professionals to develop efficient EC methodsfor design and problem solving.All the papers in this book were presented during the 2009 edition of EvoWorkshops,which was held at the Eberhard Karls Universit¨at T¨ubingen, Germany,during April 15–17, 2009. EvoWorkshops are composed of a range of workshopson application-oriented aspects of EC that, since 1998, has provided a uniqueopportunity for EC researchers to meet and discuss application aspects of ECand has been an important link between EC research and its application in avariety of domains. During these past ten years, several workshops have beenproposed, some of them have disappeared along the way, while others have maturedto become conferences of their own, such as EuroGP in 2000, EvoCOP in2004, and EvoBIO two years ago.