Markets Make The World Go Around Markets exist to help smooth the flow of information and make the future more predictable. But sometimes it takes a Ph.D. to figure out what is going on when corn goes above $8 and you are sitting on several thousand bushels.
To help figure out markets in general, look in to the video
Backwardation Bullish or Bearish (less than 5 minutes, from
The Khan Academy). This is a very simple video but it helps set the tone about markets and what they might do. For a more advanced look at futures markets, check out this Yale University
Forwards and Futures class lecture (~1 hour 10 minutes).