If so, keep reading. Technical analysis assumes that current prices should represent all known information about the markets. Prices not only reflect intrinsic facts, they also represent human emotion and the pervasive mass psychology and mood of the moment.
Prices are, in the end, a function of supply and demand.
Markets may move based upon people's expectations, not necessarily facts. Standard bar charts are commonly used to convey price activity into an easily readable chart. A price bar can represent any time frame the user wishes, from 1 minute to 1 month. The top of the bar represents the highest price of the period, and the bottom of the bar represents the lowest price of the period. The Open is represented by a small dash to the left of the bar, and the Close for the session is a small dash to the right of the bar.