Here's how to read Fibo-Gann. Apply a Fibonacci or Gann fan to a Fibonacci chart. Pick an obvious turning point such as a 52-week high or low. See how the fan corresponds to later price turns. This takes a little shucking and jiving until you see the fan blades line up with price turns, but if you get it to a point that seems to make sense, the Fibo-Gann projection should show you where prices are headed. If you go long or short on the basis of this projection, the target prices  will tell you where, more or less, to take profits.