I'm still in development as a trader, so with that in mind: I quite like bollingers. If anything, the observation that when a market is trending, price will nearly always be outside the 1 deviation band holds true. I wouldn't use it as a indicator ...
I've read 2 and 3. Wholeheartedly recommended. What I like the best from these books is, if you take out the trading specific's from the material, the performance psychology ideas can be applied to many other aspects of life also. I got/still ...