The complete study of the company including quantitative and qualitative aspects is Fundamental analysis.
The study of current market action with the input of price and volume to derive the demand and supply is Technical Analysis.
Line chart,Bar chart,Candle stick charts are the three types of charts mainly used for trading.
Line chart is misleading as it contains larger data,awhere bar and candle stick charts give us detailed information about the price action.
Pro : Stronger hands can avail all the information by getting into the management easily.
Cons : Retailers cant get more information about the company or cant able to understand the information which everyone gets.
Better don t follow the news or other media information follow the market action and understand the price fluctuation by deriving demand and supply.