To learn or review....

-Revisit revenue recognition, and learn accounting fundamentals
-DuPont analysis (profitability)
-Breakeven analysis
-CAGR calculation
-Discounting (without using NPV function)
-Basics of corporate governance
-NWC definition

Game theory:
-Prisoner's dilemma

Economics:
-Sterilization

Technical:
-How to mail merge
-Collect PPT templates