“…In the light of this definition, studying human factors is essential in understanding what we can truly achieve using visual analytics and how we can optimize software systems and visualization design to human strengths and limitations (Tory and Möller 2004). In the Part I of the series Special Issue on Geovisual Analytics: Design and Implementation edited by Pettit et al (2015), Cartwright (2015) collects expert interpretations to build a definition of the word map and distinguish it from other representations, because for tasks such as qualitatively defining and interpreting a concept, we need human input. Similarly, to understand which processes should be left to machines and which to humans; how well geovisual analytics concepts and tools are understood and utilized by their users; what are their limitations; we need to understand human experience with these systems.…”