This book constitutes the proceedings of the First International Conference on User Modeling, Adaptation, and Personalization, held in Trento, Italy, on June 22-26, 2009.

This annual conference was merged from the biennial conference series User Modeling, UM, and the conference on Adaptive Hypermedia and Adaptive Web-Based Systems, AH.

The 53 papers presented together with 3 invited talks were carefully reviewed and selected from 125 submissions. The tutorials and workshops were organized in topical sections on constraint-based tutoring systems; new paradigms for adaptive interaction; adaption and personalization for Web 2.0; lifelong user modeling; personalization in mobile and pervasive computing; ubiquitous user modeling; user-centered design and evaluation of adaptive systems.

Personal Experience with Active Cultural Heritage, PEACH, is a large, interdisciplinary development project that explores the use of novel technologies for physical museum visits. This book represents a coherent survey of the relevant technologies and environment, and will benefit AI researchers engaged with interface design, and practitioners in the area of cultural heritage support and marketing. No other book has comparable technical insight and breadth.

Intelligent Multimodal Information Presentation relates to the ability of a computer system to automatically produce interactive information presentations, taking into account the specifics about the user, such as needs, interests and knowledge, and engaging in a collaborative interaction that helps the retrieval of relevant information and its understanding on the part of the user.

The volume includes descriptions of some of the most representative recent works on Intelligent Information Presentation and a view of the challenges ahead.

Intelligent Multimodal Information Presentation relates to the ability of a computer system to automatically produce interactive information presentations, taking into account the specifics about the user, such as needs, interests and knowledge, and engaging in a collaborative interaction that helps the retrieval of relevant information and its understanding on the part of the user.

The volume includes descriptions of some of the most representative recent works on Intelligent Information Presentation and a view of the challenges ahead.

Audience: Practitioners of the field of human computer interfaces; larger audience interested in the issues related to the effectiveness of information presentation in different scenarios, including educational entertainment and electronic commerce.