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
Unicode Arrows A Fragment by Rachel Binx unicodearrows.com ↬ welcome to the best part of the unicode spec ↫ Intelligent arrows typographysymbols