Grant McKenzie is an assistant professor in the Department of Geographical Sciences at the University of Maryland and leads the Place Time Analysis Lab (PTAL). He holds a PhD in Geography from the University of California, Santa Barbara (2015), a Master of Applied Science degree from the University of Melbourne (2008), an Advanced Diploma in Geographic Information Science from the British Columbia Institute of Technology (2004) and a Bachelor's degree in Geography from the University of British Columbia (2002). Prior to starting his PhD, Grant was a founding member of the Seattle based start-up Spatial Development International (through which he still consults) and worked as a geospatial software developer for the Engineering Consulting firm CH2M Hill.