INTERACT 2009 was the 12th of a series of INTERACT international c- ferences supported by the IFIP Technical Committee 13 on Human-Computer Interaction. This year,INTERACT washeld in Uppsala (Sweden), organizedby the Swedish Interdisciplinary Interest Group for Human-Computer Interaction (STIMDI) in cooperation with the Department of Information Technology at Uppsala University. Like its predecessors, INTERACT 2009 highlighted, both to the academic and to the industrial world, the importance of the human-computer interaction (HCI) area and its most recent breakthroughs on current applications. Both - perienced HCI researchers and professionals, as well as newcomers to the HCI ?eld, interested in designing or evaluating interactive software, developing new interaction technologies, or investigating overarching theories of HCI, found in INTERACT 2009 a great forum for communication with people of similar int- ests, to encourage collaboration and to learn. INTERACT 2009 had Research and Practice as its special theme. The r- son we selected this theme is that the research within the ?eld has drifted away from the practicalapplicability of its results and that the HCI practice has come to disregard the knowledge and development within the academic community.
The two volume set LNCS 5726 and LNCS 5727 constitutes the refereed proceedings of the 12th IFIP TC13 International Conference on Human-Computer Interaction, INTERACT 2009, held in Uppsala, Sweden, in August 2009.
The 183 revised papers presented together with 7 interactive poster papers, 16 workshops, 11 tutorials, 2 special interest group papers, 6 demonstrations, 3 panels and 12 doctoral consortium papers were carefully reviewed and selected from 723 submissions. The 91 papers included in the second volume are organized in topical sections on multimodal interfaces; multi-user interaction and cooperation; novel user interfaces and interaction techniques; social media/social networks; tangible user interfaces and robotics; tools for design, modelling and evaluation; usability evaluation methods; user experience; user interfaces for safety critical systems and health care; user interfaces for Web applications and e-commerce; and visualization techniques.
