Any book by Larry Williams. Try to get the most latest version. I think he just made one on COT in 2007.
Larry Williams' book is "Trade Stocks & Commodities with the Insiders - Secrets of the COT Report" Amazon has it here: http://www.amazon.com/Trade-Stocks-...4190319?ie=UTF8&s=books&qid=1176374870&sr=8-2 You can check out how I trade the Emini with COT analysis here: http://emini-watch.com/free-stuff/commitment-of-traders/
I fear Mr Upperman's discourse on the subject has a rather instructive and arrogant approach which for most traders being self-starters proves & ends up being counter productive and results in highly selective reading. Additionally about 95% of the material contained within his treatise is aimed at not only proving the prowess of his proprietary indicators, but also serves to prove his absolute know all of sentiment based trading strategy Bottom line- most people who trade are self starters and would rather learn material through and through than to be forced to swallow a proprietary indicator to which they have virtually no idea as to its calculation, nuisances and limitations. Thats my £0.02 on the matter.... Cygnus Atratus