This three-volume set LNCS 5614-5616 constitutes the refereed proceedings of the 5th International Conference on Universal Access in Human-Computer Interaction - Addressing Diversity, UAHCI 2009, held as Part of HCI International 2009, in San Diego, CA, USA, in July 2009, jointly with 8 other thematically similar conferences. The revised papers presented were carefully reviewed and selected from numerous submissions. The papers accepted for presentation thoroughly cover the entire field of Human-Computer Interaction, addressing major advances in universal access namely universal access to learning and education, interaction and navigation in physical and virtual environments, universal access to on-line communities, eservices and work, language, text , voice, sound, images and signs, universal access to the world wide web.
