This two-volume set LNCS 4557 and 4558 constitutes the refereed proceedings of the Symposium on Human Interface 2007, held in Beijing, China in July 2007 in the framework of the 12th International Conference on Human-Computer Interaction, HCII 2007 with 8 other thematically similar conferences.
The 240 revised papers presented in the two volumes were carefully reviewed and selected from numerous submissions. The papers accepted for presentation thoroughly cover the thematic area of human interface and the management of information. The 125 papers of this second volume address the following major topics: communication and collaboration, knowledge, learning and education, mobile interaction, interacting with the world wide web and electronic services, business management and industrial applications, as well as environment, transportation and safety.