The sixth multidisciplinary workshop on advances in preferences handling had been organized by Nicolas Maudet, K. Brent Venable, and Paolo Viappiani. It had been held in Montpellier, France on August 27, 2012, in conjunction with ECAI 2012. The program consisted of an invited talk about preference representation languages and fourteen presentations of papers about topics such as voting and manipulation, voting and resource allocation, applications of preferences, recommendation and explanations, and preference languages and formalisms.