[Annals of Innovation: In the Air: Reporting & Essays: The New Yorker](http://www.newyorker.com/reporting/2008/05/12/080512fa_fact_gladwell)
An article from Malcolm Gladwell on the process of invention. Very cool. I want to do that kind of stuff when I grow up.
[Psychology of Intelligence Analysis — Central Intelligence Agency](https://www.cia.gov/library/center-for-the-study-of-intelligence/csi-publications/books-and-monographs/psychology-of-intelligence-analysis/index.html)
The CIA's manual on intelligence analysis. Some good info here for consultants and others that must take in a lot of information.
Print your own graph and note paper.