Pat Hanrahan.
Visual Thinking for Business Intelligence.
Technical Report, Tableau Software, 2005.

Bibtex:

@TechReport{ 	 hanrahan:2005:VTBI,
  author = 	 "Pat Hanrahan",
  title = 	 "Visual Thinking for Business Intelligence",
  institution =  "Tableau Software",
  year = 	 "2005",
}