The Eyes Have It A Research Paper by Ben Shneiderman www.cs.umd.edu The Visual Information Seeking Mantra visualizationinformationdata
Readings in Information Visualization: Using Vision to Think A Book by Ben Shneiderman visualizationthinkinginformation
Time-based analytics An Article by Ryan Singer feltpresence.com Analytics apps don't tell you much about usage behavior. You might be able to see how many users performed an event, or how many times they did it. But none of the analytics packages out there are good at showing you how often people do things. Are they using to-dos once a week? Every day? Only signing into the app once a month but happily paying for years? Time matters. You can't understand usage without time. analyticsmetricsfeaturesvisualization