One of the best books I've read is by Bryce Gilmore and is called "An Introduction to the Methods of WD Gann". Its a very short book but he doesn't waste any time getting right to it.
He gives a great synopsis with the methods of squaring price and time.
Price units in a trend equal time units in a trend Base price equals time units to a new change in trend Prior price range equals time units to a new change in trend Prior time units equals next price range to a new change in trend Current price equals time units from a prior change in trend
the government cannot give anything to anyone -- that they have not first taken away from someone else.