Renko charts are a great way to analyze the market from a completely different perspective. If you like to cut to the chase and look at raw price action, then renko charts certainly are worth the time needed to learn them.
In major currency pairs, the shooting star is shown to be reliable at predicting the immediate period ahead, but it is less reliable in forecasting longer term changes in trend.
The power of the zig zag indicator is in its ability to cut through market noise and locate chart turning points. These are where trends are turning from one direction to another.
The doji is a special type of candlestick pattern that can signal a changing market. We can use this pattern to try to understand the sentiment and to recognize times when the market strength is switching between buyers and sellers.