Awesome Oscillator (AO) is simply the difference between the 34-period and 5-period simple moving averages of the bar's midpoints (H+L)/2.
The Chaos Awesome Oscillator is discussed by Bill M. Williams, PhD in his "Trading Chaos" book(s).
Bill Williams' "Trading Chaos" book(s) describe some basic (and advanced) concepts for trading using the Chaos Awesome Oscillator as part of a larger, more inclusive Chaos-based trading methodology.
For a full, detailed description of Bill Williams' Chaos trading methods, please refer to:
"Trading Chaos: Applying Expert Techniques to Maximize Your Profits" by Bill M. Williams, PhD (1995)
"New Trading Dimensions: How to Profit from Chaos in Stocks, Bonds, and Commodities" by Bill M. Williams, PhD (1998)
"Trading Chaos: Maximize Profits with Proven Technical Techniques" by Bill M. Williams, PhD (2004)
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