1. The only book I can recall reading about TA is Nison's book on Candlesticks... and that turned out to be only marginally useful. I am a self-taught player. (One of my favorite quotes is from the fictional Sherlock Holmes... when asked, "Just what is it that you do, Mr. Holmes?" He replied, "I observe and deduce". Schooled in science myself, it seems only natural to formulate trading strategy from that perspective. In my market career I've encountered 3 others who more-or-less view/trade the market as I. There must be many others, as it's "there" to be seen and understood by everybody... if they're able to screw on their thinking cap.)
2. All TA comes from the market itself. Price, chart patterns, and many say volume. (Personally I refute the value of volume in trading/investing decisions.) TA excludes the notion of fundamentals... except for identifying reinforcing the prevailing bullish/bearish psychology... which is also a "TA Price" thing. That is... whatever your fundamental perception... it has already been reflected in the price charts. (It's often said, "technicals precede fundamentals". I don't think that's true. What IS true is that prices can
reflect fundamentals before we retail screen jockeys can "
get the news", so that it appears technicals lead.)