You are cordially invited to participate in the inaugural Augmented Cognition International Conference, to be held in conjunction with HCI International 2005, Las Vegas, July 22-27, 2005. Augmented Cognition is an emerging field of research that seeks to extend a user’s abilities via computational technologies that are explicitly designed to address bottle-necks, limitations, and biases in cognition. The goal of augmented-cognition research is to develop computational methods that address information processing bottlenecks inherent in the human-computer interaction. These include limitations in attention, memory, learning, comprehension, visualization abilities, and decision making. Limitations in human cognition are due to intrinsic restrictions in the number of mental tasks that a person can execute at one time, and this capacity itself may fluctuate from moment to moment depending on a host of factors including mental fatigue, novelty, boredom and stress