Scott MacKenzie is Associate Professor at York University, Canada. His research area includes human-computer interaction with an emphasis on human performance measurement and modeling, experimental methods and evaluation, interaction devices and techniques, alphanumeric entry, language modeling, and mobile computing. He recieved Ph.D in 1992 at the University of Toronto He has more than 100 peer-reviewed publications in the field of Human-Computer Interaction (including more than 30 from the ACM's annual SIGCHI conference) and has given numerous invited talks over the past 20 years. Since 1999, he has been Associate Professor of Computer Science and Engineering at York University, Canada.