The most common types of graph to the movement of prices in the market and used in the trading of foreign currencies, are the bars and candles:

1 - bars:
 Price bars are the first line represents the period of time and this can Raahhrkh price of stores for a period of time. Each bar has similar characteristics, and explains the most important stores of information needed to make the right decision.

The highest point of the figure is the highest rate achieved during that time period.
The lowest point of the figure is the lowest rate achieved during the same period.
When you view the form there is a small dot on the left side of the figure are the opening price for the period and the small dot on the right side is the closing price for the period.

2 - Japanese candles:
 The Japanese use candles, candles or simply as it is now known to provide the same information provided by the bars. The only difference is that the difference between the two forms is the form of the opening price and closing price, which open and close on a rectangular shape and color that are displayed in color. Red color means that the closing price was less than the opening price.
Blue means that the opening price is higher than the closing price.

If the rectangle contains the line represents the difference between the opening price and the highest value is called the head if the rectangle contains the line represents the difference between the closing price and the lowest value is called the tail.

It can be concluded expectations of many of these "candles" and had written a lot of analysts of several books on the art of interpreting these graphs.