The International Conference on User Modeling, Adaptation, and Personalization (UMAP) is the oldest international conference for researchers and practitioners working on various kinds of user-adaptive computer systems such as Adaptive hypermedia systems, Recommender systems, Adaptive websites, Adaptive learning, Personalized learning and Intelligent tutoring systems and Personalized search systems. All of these systems adapt to their individual users, or to groups of users (i.e., Personalization). To achieve this goal, they collect and represent information about users or groups (i.e., User modeling).